Remove validation from authConfigs in integration connector's connection resource. (#14392) (#23429)

[upstream:c608b235de428961edbb11355221f0d78fa4d504]

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

.changelog/14392.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+integrationconnectors: remove validation from authConfigs in `google_integration_connectors_connection`
+```

google/services/integrationconnectors/resource_integration_connectors_connection.go

@@ -228,7 +228,6 @@ format as: projects/*/secrets/*/versions/*.`,
 									},
 								},
 							},
-							ExactlyOneOf: []string{"auth_config.0.user_password", "auth_config.0.oauth2_jwt_bearer", "auth_config.0.oauth2_client_credentials", "auth_config.0.ssh_public_key", "auth_config.0.oauth2_auth_code_flow"},
 						},
 						"oauth2_client_credentials": {
 							Type:        schema.TypeList,
@@ -260,7 +259,6 @@ format as: projects/*/secrets/*/versions/*.`,
 									},
 								},
 							},
-							ExactlyOneOf: []string{"auth_config.0.user_password", "auth_config.0.oauth2_jwt_bearer", "auth_config.0.oauth2_client_credentials", "auth_config.0.ssh_public_key", "auth_config.0.oauth2_auth_code_flow"},
 						},
 						"oauth2_jwt_bearer": {
 							Type:        schema.TypeList,
@@ -314,7 +312,6 @@ format as: projects/*/secrets/*/versions/*.`,
 									},
 								},
 							},
-							ExactlyOneOf: []string{"auth_config.0.user_password", "auth_config.0.oauth2_jwt_bearer", "auth_config.0.oauth2_client_credentials", "auth_config.0.ssh_public_key", "auth_config.0.oauth2_auth_code_flow"},
 						},
 						"ssh_public_key": {
 							Type:        schema.TypeList,
@@ -367,7 +364,6 @@ format as: projects/*/secrets/*/versions/*.`,
 									},
 								},
 							},
-							ExactlyOneOf: []string{"auth_config.0.user_password", "auth_config.0.oauth2_jwt_bearer", "auth_config.0.oauth2_client_credentials", "auth_config.0.ssh_public_key", "auth_config.0.oauth2_auth_code_flow"},
 						},
 						"user_password": {
 							Type:        schema.TypeList,
@@ -399,7 +395,6 @@ format as: projects/*/secrets/*/versions/*.`,
 									},
 								},
 							},
-							ExactlyOneOf: []string{"auth_config.0.user_password", "auth_config.0.oauth2_jwt_bearer", "auth_config.0.oauth2_client_credentials", "auth_config.0.ssh_public_key", "auth_config.0.oauth2_auth_code_flow"},
 						},
 					},
 				},