Clean up makefile, in particular dependencies on libHalide.a
Clean up makefile, in particular dependencies on libHalide.a


Former-commit-id: 0d0206063d82fb13788aeb4410bc97230f23e933
Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide