diff --git a/config/config.go b/config/config.go
index 1772fd7e3..f13a046c6 100644
--- a/config/config.go
+++ b/config/config.go
@@ -252,35 +252,6 @@ func (r *Resource) Id() string {
 	}
 }
 
-// ProviderFullName returns the full name of the provider for this resource,
-// which may either be specified explicitly using the "provider" meta-argument
-// or implied by the prefix on the resource type name.
-func (r *Resource) ProviderFullName() string {
-	return ResourceProviderFullName(r.Type, r.Provider)
-}
-
-// ResourceProviderFullName returns the full (dependable) name of the
-// provider for a hypothetical resource with the given resource type and
-// explicit provider string. If the explicit provider string is empty then
-// the provider name is inferred from the resource type name.
-func ResourceProviderFullName(resourceType, explicitProvider string) string {
-	if explicitProvider != "" {
-		// check for an explicit provider name, or return the original
-		parts := strings.SplitAfter(explicitProvider, "provider.")
-		return parts[len(parts)-1]
-	}
-
-	idx := strings.IndexRune(resourceType, '_')
-	if idx == -1 {
-		// If no underscores, the resource name is assumed to be
-		// also the provider name, e.g. if the provider exposes
-		// only a single resource of each type.
-		return resourceType
-	}
-
-	return resourceType[:idx]
-}
-
 // Validate does some basic semantic checking of the configuration.
 func (c *Config) Validate() tfdiags.Diagnostics {
 	if c == nil {
diff --git a/config/config_test.go b/config/config_test.go
index 8de5d764f..93ac8ece6 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -795,56 +795,6 @@ func TestConfigProviderVersion(t *testing.T) {
 	}
 }
 
-func TestResourceProviderFullName(t *testing.T) {
-	type testCase struct {
-		ResourceName string
-		Alias        string
-		Expected     string
-	}
-
-	tests := []testCase{
-		{
-			// If no alias is provided, the first underscore-separated segment
-			// is assumed to be the provider name.
-			ResourceName: "aws_thing",
-			Alias:        "",
-			Expected:     "aws",
-		},
-		{
-			// If we have more than one underscore then it's the first one that we'll use.
-			ResourceName: "aws_thingy_thing",
-			Alias:        "",
-			Expected:     "aws",
-		},
-		{
-			// A provider can export a resource whose name is just the bare provider name,
-			// e.g. because the provider only has one resource and so any additional
-			// parts would be redundant.
-			ResourceName: "external",
-			Alias:        "",
-			Expected:     "external",
-		},
-		{
-			// Alias always overrides the default extraction of the name
-			ResourceName: "aws_thing",
-			Alias:        "tls.baz",
-			Expected:     "tls.baz",
-		},
-	}
-
-	for _, test := range tests {
-		got := ResourceProviderFullName(test.ResourceName, test.Alias)
-		if got != test.Expected {
-			t.Errorf(
-				"(%q, %q) produced %q; want %q",
-				test.ResourceName, test.Alias,
-				got,
-				test.Expected,
-			)
-		}
-	}
-}
-
 func TestConfigModuleProviders(t *testing.T) {
 	c := testConfig(t, "module-providers")
 
diff --git a/config/providers.go b/config/providers.go
index 7a50782f3..eeddabc32 100644
--- a/config/providers.go
+++ b/config/providers.go
@@ -13,48 +13,6 @@ type ProviderVersionConstraint struct {
 // ProviderVersionConstraint, as produced by Config.RequiredProviders.
 type ProviderVersionConstraints map[string]ProviderVersionConstraint
 
-// RequiredProviders returns the ProviderVersionConstraints for this
-// module.
-//
-// This includes both providers that are explicitly requested by provider
-// blocks and those that are used implicitly by instantiating one of their
-// resource types. In the latter case, the returned semver Range will
-// accept any version of the provider.
-func (c *Config) RequiredProviders() ProviderVersionConstraints {
-	ret := make(ProviderVersionConstraints, len(c.ProviderConfigs))
-
-	configs := c.ProviderConfigsByFullName()
-
-	// In order to find the *implied* dependencies (those without explicit
-	// "provider" blocks) we need to walk over all of the resources and
-	// cross-reference with the provider configs.
-	for _, rc := range c.Resources {
-		providerName := rc.ProviderFullName()
-		var providerType string
-
-		// Default to (effectively) no constraint whatsoever, but we might
-		// override if there's an explicit constraint in config.
-		constraint := ">=0.0.0"
-
-		config, ok := configs[providerName]
-		if ok {
-			if config.Version != "" {
-				constraint = config.Version
-			}
-			providerType = config.Name
-		} else {
-			providerType = providerName
-		}
-
-		ret[providerName] = ProviderVersionConstraint{
-			ProviderType: providerType,
-			Constraint:   constraint,
-		}
-	}
-
-	return ret
-}
-
 // RequiredRanges returns a semver.Range for each distinct provider type in
 // the constraint map. If the same provider type appears more than once
 // (e.g. because aliases are in use) then their respective constraints are
diff --git a/terraform/util.go b/terraform/util.go
index 752241af1..5428cd5a0 100644
--- a/terraform/util.go
+++ b/terraform/util.go
@@ -2,8 +2,6 @@ package terraform
 
 import (
 	"sort"
-
-	"github.com/hashicorp/terraform/config"
 )
 
 // Semaphore is a wrapper around a channel to provide
@@ -48,10 +46,6 @@ func (s Semaphore) Release() {
 	}
 }
 
-func resourceProvider(resourceType, explicitProvider string) string {
-	return config.ResourceProviderFullName(resourceType, explicitProvider)
-}
-
 // strSliceContains checks if a given string is contained in a slice
 // When anybody asks why Go needs generics, here you go.
 func strSliceContains(haystack []string, needle string) bool {