Polish "Bump Spring Framework version to 5.3.32"

Remove unnecessary spring-framework-bom section in
spring-cloud-dataflow-build-dependencies/pom.xml

Author: onobc

spring-cloud-dataflow-build/spring-cloud-dataflow-build-dependencies/pom.xml

@@ -90,13 +90,6 @@
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
-			<dependency>
-				<groupId>org.springframework</groupId>
-				<artifactId>spring-framework-bom</artifactId>
-				<version>${spring-framework.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
 			<dependency>
 				<groupId>org.springframework.cloud</groupId>
 				<artifactId>spring-cloud-dependencies</artifactId>