Removes "copy" action for extra_native_libs in java_apk.gypi.

Removes "copy" action for extra_native_libs in java_apk.gypi.

Since the output lib file is already generated by
strip_native_libraries, the 'copy' action will result in the
unstripped version overwriting the stripped one and getting
packaged in the final APK.

Before change:

$ ninja -C out/Debug -j32 content_shell_apk
[snipped]

$ ls -l out/Debug/apks/ContentShell.apk
-rw-r----- 1 gunsch eng 27M Apr  3 15:09 out/Debug/apks/ContentShell.apk

$ unzip -l out/Debug/apks/ContentShell.apk | grep lib/
   264772  2014-04-03 14:54   lib/armeabi-v7a/gdbserver
 16030344  2014-04-03 15:00   lib/armeabi-v7a/libosmesa.so
 38423836  2014-04-03 15:09   lib/armeabi-v7a/libcontent_shell_content_view.so

$ ls -l out/Debug/lib
total 2.2G
-rwxr-x--- 1 gunsch eng 2.2G Apr  3 15:09 libcontent_shell_content_view.so
-rw-r----- 1 gunsch eng 5.7K Apr  3 15:09 libcontent_shell_content_view.so.TOC
-rwxr-x--- 1 gunsch eng  26K Mar 28 14:25 libmojo_system.so
-rw-r----- 1 gunsch eng  714 Mar 28 14:25 libmojo_system.so.TOC
-rwxr-x--- 2 gunsch eng  16M Apr  3 15:00 libosmesa.so

$ ls -l out/Debug/content_shell_apk/libs/armeabi-v7a/
total 53M
-rwxr-x--- 2 gunsch eng 259K Apr  3 14:54 gdbserver
-rwxr-x--- 1 gunsch eng  37M Apr  3 15:09 libcontent_shell_content_view.so
-rwxr-x--- 2 gunsch eng  16M Apr  3 15:00 libosmesa.so

After change:

$ ls -l out/Debug/apks/ContentShell.apk
-rw-r----- 1 gunsch eng 21M Apr  3 15:31 out/Debug/apks/ContentShell.apk

$ unzip -l out/Debug/apks/ContentShell.apk | grep lib/
   264772  2014-04-03 14:54   lib/armeabi-v7a/gdbserver
  2289816  2014-04-03 15:31   lib/armeabi-v7a/libosmesa.so
 38423836  2014-04-03 15:31   lib/armeabi-v7a/libcontent_shell_content_view.so

$ ls -l out/Debug/lib
total 2.2G
-rwxr-x--- 1 gunsch eng 2.2G Apr  3 15:31 libcontent_shell_content_view.so
-rw-r----- 1 gunsch eng 5.7K Apr  3 15:31 libcontent_shell_content_view.so.TOC
-rwxr-x--- 1 gunsch eng  16M Apr  3 15:30 libosmesa.so

$ ls -l out/Debug/content_shell_apk/libs/armeabi-v7a/
total 40M
-rwxr-x--- 2 gunsch eng 259K Apr  3 14:54 gdbserver
-rwxr-x--- 1 gunsch eng  37M Apr  3 15:31 libcontent_shell_content_view.so
-rwxr-x--- 1 gunsch eng 2.2M Apr  3 15:31 libosmesa.so

BUG=
R=peter@chromium.org

Review URL: https://codereview.chromium.org/224673002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262461 0039d316-1c4b-4281-b951-d872f2087c98