[RISCV] Remove unused check prefixes. NFC

Author: lukel97

llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-shuffles.ll

@@ -1,8 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfh,+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV32
-; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfh,+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV64
-; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfhmin,+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV32
-; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfhmin,+v -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,RV64
+; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfh,+v -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfh,+v -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfhmin,+v -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfhmin,+v -verify-machineinstrs < %s | FileCheck %s
 
 define <4 x half> @shuffle_v4f16(<4 x half> %x, <4 x half> %y) {
 ; CHECK-LABEL: shuffle_v4f16:
@@ -308,7 +308,3 @@ define <4 x half> @vrgather_shuffle_vx_v4f16_load(ptr %p) {
   %s = shufflevector <4 x half> %v, <4 x half> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
   ret <4 x half> %s
 }
-
-;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
-; RV32: {{.*}}
-; RV64: {{.*}}