Enables the unnecessary whitespace clean-up

Fixes eclipse-platform/eclipse.platform#1868

Author: vogella

eclipse-platform-parent/pom.xml

@@ -589,6 +589,8 @@
                         <cleanup.remove_unnecessary_array_creation>true</cleanup.remove_unnecessary_array_creation>
                         <!-- Remove unnecessary suppress warning tokens -->
                         <cleanup.remove_unnecessary_suppress_warnings>true</cleanup.remove_unnecessary_suppress_warnings>
+                         <!-- Remove unnecessary whitespace -->
+                        <cleanup.remove_trailing_whitespaces_all>true</cleanup.remove_trailing_whitespaces_all>
                     </cleanUpProfile>
                 </configuration>
             </execution>