Remove HDMI plug-off subtest

Remove this subtest on factory branch since plug-off is not supported yet.
Revert this CL once we have plug-off supported.

TEST=run factory_ExtDisplay on snow dvt board, can pass the plug-on
subtest. And the test is passed.

Change-Id: I46d38c9489facb2d192662dfbb1ffb8e6b07b113
Reviewed-by: Chinyue Chen <>
Tested-by: Cheng-Yi Chiang <>
1 file changed