Revert "TAS: fix generic AS on prototype arguments"
Revert "TAS: fix generic AS on prototype arguments"

This reverts commit 7d045b449c4427a7242a489450410a8b6ddab8ff. For
some reason after this fix, ellipsis (...) is dropped from _cl_printf()
in some pass, and i can't figure out why.

rjodin/pocl,pavanky/pocl,franz/pocl,vkorhonen/pocl,jrprice/pocl,pocl/pocl,franz/pocl,franz/pocl,pocl/pocl,pocl/pocl,vkorhonen/pocl,jrprice/pocl,pocl/pocl,vkorhonen/pocl,jrprice/pocl,rjodin/pocl,dsandersimgtec/pocl,rjodin/pocl,Oblomov/pocl,franz/pocl,pavanky/pocl,Oblomov/pocl,pavanky/pocl,pavanky/pocl,Oblomov/pocl,franz/pocl,jrprice/pocl,rjodin/pocl,dsandersimgtec/pocl,Oblomov/pocl,Oblomov/pocl,pocl/pocl,dsandersimgtec/pocl,vkorhonen/pocl,dsandersimgtec/pocl