Revert "e_signals.c: Inclues Ecore_DRM only if WL_DRM is built and not only if WAYLAND is built"
Revert "e_signals.c: Inclues Ecore_DRM only if WL_DRM is built and not only if WAYLAND is built"

This reverts commit 96e304bc904c49df406b34108d7442835025349d.

tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tasn/enlightenment,rvandegrift/e,rvandegrift/e,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tasn/enlightenment,tizenorg/platform.upstream.enlightenment