[RISCV][NFC] Fix the mismatch in comment (llvm#140511)

There should be only one `vector_in`.

And we remove the surrounding double quotes.

Author: wangpc-pp

llvm/include/llvm/IR/IntrinsicsRISCV.td

@@ -362,7 +362,7 @@ let TargetPrefix = "riscv" in {
                     [ImmArg<ArgIndex<3>>, ImmArg<ArgIndex<5>>, IntrNoMem]>, RISCVVIntrinsic {
     let VLOperand = 4;
   }
-  // Input: (passthru, vector_in, vector_in, mask, vl)
+  // Input: (passthru, vector_in, mask, vl)
   class RISCVCompress
         : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
                     [LLVMMatchType<0>, LLVMMatchType<0>,
@@ -1570,7 +1570,7 @@ let TargetPrefix = "riscv" in {
   defm vrgather_vx : RISCVRGatherVX;
   defm vrgatherei16_vv : RISCVRGatherEI16VV;
 
-  def "int_riscv_vcompress" : RISCVCompress;
+  def int_riscv_vcompress : RISCVCompress;
 
   defm vaaddu : RISCVSaturatingBinaryAAXRoundingMode;
   defm vaadd : RISCVSaturatingBinaryAAXRoundingMode;