Removed unnecessary dependency on MapStruct processor.

Author: Chessray

additions/build.gradle

@@ -4,7 +4,6 @@ dependencies {
     implementation 'org.springframework:spring-core:5.0.0.RELEASE'
     implementation 'com.squareup:javapoet:1.12.1'
     implementation 'org.apache.commons:commons-lang3:3.10'
-    implementation 'org.mapstruct:mapstruct-processor:1.4.0-SNAPSHOT'
 
     testImplementation 'org.assertj:assertj-core:3.15.0'
     testImplementation 'commons-io:commons-io:2.6'