Remove dependency on EGL/KHR headers from README

inc/README.txt

@@ -1,19 +1,14 @@
-Copy or symlink {OpenCL, EGL, KHR} headers here, inside appropriate
-directories, so that the structure of the inc directory looks something like
-this:
+Copy or symlink OpenCL headers here, inside a CL directory, so that
+the structure of the inc directory looks something like this:
 
 inc/CL/cl_d3d10.h
 inc/CL/cl_d3d11.h
 inc/CL/cl_dx9_media_sharing.h
+inc/CL/cl_egl.h
 inc/CL/cl_ext.h
 inc/CL/cl_gl_ext.h
 inc/CL/cl_gl.h
 inc/CL/cl.h
 inc/CL/cl.hpp
 inc/CL/cl_platform.h
 inc/CL/opencl.h
-inc/EGL/eglext.h
-inc/EGL/egl.h
-inc/EGL/eglplatform.h
-inc/KHR/khrplatform.h
-