remove unused files

remove unused files

Currently, These spec files are useless and have not been submitted
to OBS for building, so it's necessary to clean them up.
Without this change, `gbs build` results will contails build error
with dependency issue, and the build result will be much cleaner after
applying this patch.

Refer to the same issue in platform/upstream/gcc48:
https://review.tizen.org/gerrit/#/c/21357

Change-Id: I9f489740127f8633fbaa38b1367052f773be4fd9
Signed-off-by: Li Jinjing <jinjingx.li@intel.com>