MIPS64: Fix 'Use Rotate*() functions instead of doing this manually.'

BUG=

Review URL: https://codereview.chromium.org/975383002

Cr-Commit-Position: refs/heads/master@{#26990}

src/mips64/simulator-mips64.cc

@@ -2045,7 +2045,7 @@ void Simulator::ConfigureTypeRegister(Instruction* instr,
             // Logical right-rotate of a word by a variable number of bits.
             // This is special case od SRLV instruction, added in MIPS32
             // Release 2. SA field is equal to 00001.
-            *alu_out = base::bits::RotateRight32(((uint32_t)rt_u, rs_u);
+            *alu_out = base::bits::RotateRight32((uint32_t)rt_u, rs_u);
           }
           break;
         case DSRLV: