mesa: Drop duplicate files in meta subdirectory

* somehow it slipped in with df506ef248f7c975168f999d0c9795fc666257a8

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: Id72073662509fb954d4bdba1d50f31038cd1f55e
Reviewed-on: https://g2g.palm.com/1965
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>