pipe-loader: remove HAVE_DRM_LOADER_GALLIUM and HAVE_PIPE_LOADER_DRM

... in favour of HAVE_LIBDRM. After all we solely want to build the code
when the latter is available.

In the not too distant future we will remove the libudev/sysfs
dependency and simplify configure.ac even further.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Rob Clark <robclark@freedesktop.org>
3 files changed