diff --git a/google/internal/externalaccount/aws_test.go b/google/internal/externalaccount/aws_test.go
index c08b9ca..28dc528 100644
--- a/google/internal/externalaccount/aws_test.go
+++ b/google/internal/externalaccount/aws_test.go
@@ -1235,104 +1235,9 @@ func TestAWSCredential_ShouldCallMetadataEndpointWhenNoSecretAccessKey(t *testin
 	}
 }
 
-func TestAWSCredential_Validations(t *testing.T) {
-	var metadataServerValidityTests = []struct {
-		name       string
-		credSource CredentialSource
-		errText    string
-	}{
-		{
-			name: "No Metadata Server URLs",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "",
-				URL:                   "",
-				IMDSv2SessionTokenURL: "",
-			},
-		}, {
-			name: "IPv4 Metadata Server URLs",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "http://169.254.169.254/latest/meta-data/placement/availability-zone",
-				URL:                   "http://169.254.169.254/latest/meta-data/iam/security-credentials",
-				IMDSv2SessionTokenURL: "http://169.254.169.254/latest/api/token",
-			},
-		}, {
-			name: "IPv6 Metadata Server URLs",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "http://[fd00:ec2::254]/latest/meta-data/placement/availability-zone",
-				URL:                   "http://[fd00:ec2::254]/latest/meta-data/iam/security-credentials",
-				IMDSv2SessionTokenURL: "http://[fd00:ec2::254]/latest/api/token",
-			},
-		}, {
-			name: "Faulty RegionURL",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "http://abc.com/latest/meta-data/placement/availability-zone",
-				URL:                   "http://169.254.169.254/latest/meta-data/iam/security-credentials",
-				IMDSv2SessionTokenURL: "http://169.254.169.254/latest/api/token",
-			},
-			errText: "oauth2/google: invalid hostname http://abc.com/latest/meta-data/placement/availability-zone for region_url",
-		}, {
-			name: "Faulty CredVerificationURL",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "http://169.254.169.254/latest/meta-data/placement/availability-zone",
-				URL:                   "http://abc.com/latest/meta-data/iam/security-credentials",
-				IMDSv2SessionTokenURL: "http://169.254.169.254/latest/api/token",
-			},
-			errText: "oauth2/google: invalid hostname http://abc.com/latest/meta-data/iam/security-credentials for url",
-		}, {
-			name: "Faulty IMDSv2SessionTokenURL",
-			credSource: CredentialSource{
-				EnvironmentID:         "aws1",
-				RegionURL:             "http://169.254.169.254/latest/meta-data/placement/availability-zone",
-				URL:                   "http://169.254.169.254/latest/meta-data/iam/security-credentials",
-				IMDSv2SessionTokenURL: "http://abc.com/latest/api/token",
-			},
-			errText: "oauth2/google: invalid hostname http://abc.com/latest/api/token for imdsv2_session_token_url",
-		},
-	}
-
-	for _, tt := range metadataServerValidityTests {
-		t.Run(tt.name, func(t *testing.T) {
-			tfc := testFileConfig
-			tfc.CredentialSource = tt.credSource
-
-			oldGetenv := getenv
-			defer func() { getenv = oldGetenv }()
-			getenv = setEnvironment(map[string]string{})
-
-			_, err := tfc.parse(context.Background())
-			if err != nil {
-				if tt.errText == "" {
-					t.Errorf("Didn't expect an error, but got %v", err)
-				} else if tt.errText != err.Error() {
-					t.Errorf("Expected %v, but got %v", tt.errText, err)
-				}
-			} else {
-				if tt.errText != "" {
-					t.Errorf("Expected error %v, but got none", tt.errText)
-				}
-			}
-		})
-	}
-}
-
 func TestAwsCredential_CredentialSourceType(t *testing.T) {
 	server := createDefaultAwsTestServer()
 	ts := httptest.NewServer(server)
-	tsURL, err := neturl.Parse(ts.URL)
-	if err != nil {
-		t.Fatalf("couldn't parse httptest servername")
-	}
-
-	oldValidHostnames := validHostnames
-	defer func() {
-		validHostnames = oldValidHostnames
-	}()
-	validHostnames = []string{tsURL.Hostname()}
 
 	tfc := testFileConfig
 	tfc.CredentialSource = server.getCredentialSource(ts.URL)