configure.ac: Don't bother checking whether LLVM's MCJIT component is available.
configure.ac: Don't bother checking whether LLVM's MCJIT component is available.

Now that we require LLVM 3.3, MCJIT is guaranteed to be available.

Trvial.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler