remove double and int spv sema tests

Author: kmpeng

clang/test/SemaSPIRV/BuiltIns/smoothstep-errors.c

@@ -16,13 +16,3 @@ float2 test_too_many_arg(float2 p0) {
   return __builtin_spirv_smoothstep(p0, p0, p0, p0);
   // expected-error@-1 {{too many arguments to function call, expected 3, have 4}}
 }
-
-float test_double_scalar_inputs(double p0, double p1, double p2) {
-  return __builtin_spirv_smoothstep(p0, p1, p2);
-  //  expected-error@-1 {{passing 'double' to parameter of incompatible type '__attribute__((__vector_size__(2 * sizeof(double)))) double' (vector of 2 'double' values)}}
-}
-
-float test_int_scalar_inputs(int p0, int p1, int p2) {
-  return __builtin_spirv_smoothstep(p0, p1, p2);
-  //  expected-error@-1 {{passing 'int' to parameter of incompatible type '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int' values)}}
-}