Remove feature flag llvm_asm

Author: brkydnc

src/htm/ops.rs

@@ -93,7 +93,7 @@ mod lever_hwtxn_test {
 
     pub fn swallow<T>(d: T) -> T {
         unsafe {
-            llvm_asm!("" : : "r"(&d));
+            core::arch::asm!("" : : "r"(&d));
             d
         }
     }

src/lib.rs

@@ -1,6 +1,5 @@
 // Behind the feature gates
 #![cfg_attr(feature = "hw", feature(portable_simd))]
-#![cfg_attr(feature = "hw", feature(llvm_asm))]
 #![cfg_attr(feature = "hw", feature(stdarch_x86_rtm))]
 // FIXME: Baking still
 #![allow(dead_code)]