[Test] Removed unused pattern match.

Author: nate-chandler

test/SILOptimizer/opaque_values_Onone_stdlib.swift

@@ -41,7 +41,7 @@ func foo(@_noImplicitCopy _ x: __owned X) {
 // CHECK:       {{bb[0-9]+}}([[OUT_ADDR:%[^,]+]] : $*T, [[IN_ADDR:%[^,]+]] : $*T):
 // CHECK:         [[TMP_ADDR:%[^,]+]] = alloc_stack $T
 // CHECK:         copy_addr [[IN_ADDR]] to [init] [[TMP_ADDR]] : $*T
-// CHECK:         [[REGISTER_5:%[^,]+]] = builtin "copy"<T>([[OUT_ADDR]] : $*T, [[TMP_ADDR]] : $*T) : $()
+// CHECK:         builtin "copy"<T>([[OUT_ADDR]] : $*T, [[TMP_ADDR]] : $*T) : $()
 // CHECK:         dealloc_stack [[TMP_ADDR]] : $*T
 // CHECK:         return {{%[^,]+}} : $()
 // CHECK-LABEL: } // end sil function '_copy'