Revert "Add temporary workaround for IRBuilderDefaultInserter"
Revert "Add temporary workaround for IRBuilderDefaultInserter"

This reverts commit 5b118a8bf4acd937fa68ce6dcb7ebdd36920911a.

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