update cfg(bootstrap)s

library/core/tests/cmp.rs

@@ -204,7 +204,6 @@ fn cmp_default() {
     assert_eq!(Fool(false), Fool(true));
 }
 
-#[cfg(not(bootstrap))]
 mod const_cmp {
     use super::*;
 

library/core/tests/intrinsics.rs

@@ -37,7 +37,6 @@ fn test_assume_can_be_in_const_contexts() {
 }
 
 #[test]
-#[cfg(not(bootstrap))]
 const fn test_write_bytes_in_const_contexts() {
     use core::intrinsics::write_bytes;
 

library/core/tests/ptr.rs

@@ -251,7 +251,6 @@ fn test_set_memory() {
 }
 
 #[test]
-#[cfg(not(bootstrap))]
 fn test_set_memory_const() {
     const XS: [u8; 20] = {
         let mut xs = [0u8; 20];