rollback :generate <dependencyManagement> section on pom file

Author: jvmlet

grpc-spring-boot-starter/build.gradle

@@ -38,11 +38,8 @@ dependencyManagement {
         mavenBom "org.springframework.boot:spring-boot-starter-parent:${springBootVersion}"
         mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
     }
-    generatedPomCustomization {
-        enabled(false)
-    }
-
 }
+
 task generateReleaseNotes(type: JavaExec, group: "documentation") {
     def m = java.util.regex.Pattern.compile("(\\d+\\.\\d+\\.\\d+).*").matcher(version.toString())
     def milestoneLabel = ""
@@ -273,7 +270,7 @@ dependencies {
     compileOnly "io.grpc:grpc-netty:${grpcVersion}"
     compile "io.grpc:grpc-netty-shaded:${grpcVersion}"
     compile "io.grpc:grpc-services:${grpcVersion}"
-    compile "org.springframework.boot:spring-boot-starter:${springBootVersion}"
+    compile "org.springframework.boot:spring-boot-starter"
     compile 'io.netty:netty-tcnative-boringssl-static:2.0.47.Final'
 
     annotationProcessor("org.springframework.boot:spring-boot-configuration-processor")