Remove OVS source files

Removed all OVS related source files except the header files needed.
Also checking in OVS static libraries used by the agent; these were
built on 64-bit Fedora 20.

Testing done: Built agent binaries (autorun.sh -w) successfully on
Fedora 20 and CentOS 6.5. Ran a few tests under "tests" for sanity.

Change-Id: I47b4bb7dfa9a8d9e29ad0611df92b8f2fe8e4070
Signed-off-by: amittbose <amitbose@gmail.com>