filter2D.pencil.c remove unnecessary assume calls
filter2D.pencil.c remove unnecessary assume calls


Former-commit-id: 4735c4dfa19d9783053811364921b451e07f5929
rbaghdadi/pencil-benchmark,dividiti/pencil-benchmark,rbaghdadi/pencil-benchmark,dividiti/pencil-benchmark,rbaghdadi/pencil-benchmark,pencil-language/pencil-benchmark,pencil-language/pencil-benchmark,dividiti/pencil-benchmark,pencil-language/pencil-benchmark