diff --git a/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/FunctionProperties.java b/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/FunctionProperties.java
index db6ba6feb..4a7a3f1e9 100644
--- a/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/FunctionProperties.java
+++ b/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/FunctionProperties.java
@@ -45,13 +45,6 @@ public class FunctionProperties implements EnvironmentAware, ApplicationContextA
 	 */
 	public final static String PREFIX = "spring.cloud.function";
 
-	/**
-	 * Name of the header to be used to instruct function catalog to skip input type conversion.
-	 * @deprecated since 3.1. Not used anymore
-	 */
-	@Deprecated
-	public final static String SKIP_CONVERSION_HEADER = "skip-input-type-conversion";
-
 	/**
 	 * Name of the header to be used to instruct function to apply this content type for output conversion.
 	 */
diff --git a/spring-cloud-function-deployer/src/main/java/org/springframework/cloud/function/deployer/EnableFunctionDeployer.java b/spring-cloud-function-deployer/src/main/java/org/springframework/cloud/function/deployer/EnableFunctionDeployer.java
deleted file mode 100644
index 233dfc223..000000000
--- a/spring-cloud-function-deployer/src/main/java/org/springframework/cloud/function/deployer/EnableFunctionDeployer.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.function.deployer;
-
-import java.lang.annotation.Documented;
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-import org.springframework.context.annotation.Import;
-
-/**
- * Annotation to be used on a Spring Boot application if it wants to deploy a jar file
- * containing a function definition.
- * @author Dave Syer
- *
- * @deprecated since 3.0. No longer required. Deployer will kick in simply by including
- * spring-cloud-function-deployer dependency
- */
-@Target(ElementType.TYPE)
-@Retention(RetentionPolicy.RUNTIME)
-@Documented
-@Import(FunctionDeployerConfiguration.class)
-@Deprecated
-public @interface EnableFunctionDeployer {
-
-}