Remove obsolete settings

gradle.properties

@@ -7,11 +7,5 @@ jmeVersionTag = stable
 # Increment this each time jmeVersionTag changes but jmeVersion stays the same
 #jmeVersionTagID = 0
 
-# specify if JavaDoc should be built
-buildJavaDoc = true
-
-# specify if SDK and Native libraries get built
-buildSdkProject = true
-
 # Path for downloading NetBeans Base
 netbeansUrl = https://dlcdn.apache.org/netbeans/netbeans/15/netbeans-15-bin.zip