Removed some old unused declarations.
Removed some old unused declarations.

ronen/Halide,psuriana/Halide,kgnk/Halide,jiawen/Halide,kgnk/Halide,jiawen/Halide,ronen/Halide,psuriana/Halide,psuriana/Halide,kgnk/Halide,ronen/Halide,psuriana/Halide,ronen/Halide,kgnk/Halide,jiawen/Halide,jiawen/Halide,jiawen/Halide,jiawen/Halide,ronen/Halide,kgnk/Halide,ronen/Halide,ronen/Halide,kgnk/Halide,ronen/Halide,psuriana/Halide,kgnk/Halide,psuriana/Halide,kgnk/Halide,psuriana/Halide,jiawen/Halide