Build system cleanups

 * Remove references to OpenCL support

 * Remove OpenCL-specific targets

 * Always enable EGL support in "default" target as EGL code doesn't
have any compile-time dependencies any more.

 * Remove DELIBS_DIR indirection as delibs is now always located under
framework/ directory.

Change-Id: I74e5eae2201c1bbd689fe86d377b603ba193bccc
5 files changed