[PENCIL] remove #pragma reduce from dilate.pencil.c because it is not PENCIL
[PENCIL] remove #pragma reduce from dilate.pencil.c because it is not PENCIL


Former-commit-id: 7a03a4e0c9de211920ea55c226295d40a55243cd
pencil-language/pencil-benchmark,dividiti/pencil-benchmark,rbaghdadi/pencil-benchmark,rbaghdadi/pencil-benchmark,pencil-language/pencil-benchmark,rbaghdadi/pencil-benchmark,pencil-language/pencil-benchmark,dividiti/pencil-benchmark,dividiti/pencil-benchmark