Simplify patch by removing changes for ASCII PGM/PPM support
Simplify patch by removing changes for ASCII PGM/PPM support


Former-commit-id: 547eac02c7c9d7bc04a147362a1160b17dca4216
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide