Revert "makefile changes for gcm javadocs"

We don't build it, nor do we have these sources.

This reverts commit 5f9922d7c3bce158e4c7a58929d4075e7c91e32e.

Change-Id: I877e617f90de1b832e26c98adbafc6238b98882f
Merge remote-tracking branch 'cm/cm-10.1' into cm-10.1-sgt7-linaro-pie