Revert "glsl: clone inputs and outputs during linking"
Revert "glsl: clone inputs and outputs during linking"

This reverts commit c2ff3485b3d48749ea9dcad07bc1a691627dc3e5.

Ilia and I noticed a memory leak caused by this patch: at least with
fixed-function programs, we clone things using ProgramResourceList as
the context before reralloc makes it non-NULL.

I believe Tapani found other bugs with these patches, so I'm just going
to revert them for now and let him pursue them further.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler