[gn build] Port 48d942c

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/lib/Target/Hexagon/BUILD.gn

@@ -61,8 +61,6 @@ static_library("LLVMHexagonCodeGen") {
     "HexagonGenMemAbsolute.cpp",
     "HexagonGenMux.cpp",
     "HexagonGenPredicate.cpp",
-    "HexagonGenWideningVecFloatInstr.cpp",
-    "HexagonGenWideningVecInstr.cpp",
     "HexagonHardwareLoops.cpp",
     "HexagonHazardRecognizer.cpp",
     "HexagonISelDAGToDAG.cpp",
@@ -79,7 +77,6 @@ static_library("LLVMHexagonCodeGen") {
     "HexagonMask.cpp",
     "HexagonNewValueJump.cpp",
     "HexagonOptAddrMode.cpp",
-    "HexagonOptShuffleVector.cpp",
     "HexagonOptimizeSZextends.cpp",
     "HexagonPeephole.cpp",
     "HexagonQFPOptimizer.cpp",