Remove kms and fbdev plugins from Gstreamer
Context
After talking with @valentindavid we agreed that the kms
and fbdev
plugins don't provide any value to Desktops and should be removed. I also asked Gstreamer maintainers and they agreed with the above statement.
Description
Remove the libdrm
dependency from gstreamer. This will cause and ABI brake but I think its an acceptable one since nothing should be using those plugins on the Desktop.
Acceptance Criteria
libgstkms.so
and libgstfbdevsink.so
are no longer present in the GST_SYSTEM_PLUGINS_PATH