mesa: drop the libopencl-mesa-dev package

mesa: drop the libopencl-mesa-dev package

Thre is no "development" package for libopencl-mesa. The main package
contains Installable Client Drivers, for which there are no headers and
the extra .so file isn't supposed to be linked with anything.

Drop the useless and confusing libopencl-mesa-dev package.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>