polyjit: Clean-up CFLAGS
polyjit: Clean-up CFLAGS

Former-commit-id: ed0fd7c4f2bc817f961a47b3e9e1803d972cd014
Former-commit-id: 732d3b401c51f73d0c6684ccec71904ea7b89d1b [formerly 2cf4454d1d321eca8327bcca644fc59323aae865] [formerly 17172725dee9ef2fbf0884e6191452d6d3523fd6 [formerly 4c89dc18b863567bcd99871d3694e3f65e60ae4e]]
Former-commit-id: d054a62ce9fee7eb4cf235d09e1878a622309bb5 [formerly 7ba6ad539ababd51c5b481fa0101cc618dc16060]
Former-commit-id: dd405f91d0f85c090889a0cec2c143df7379578d
PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild