Remove codegen tests for LLLVM-style inline assembly

src/test/codegen/no-output-asm-is-volatile.rs

@@ -1,14 +0,0 @@
-// compile-flags: -O
-
-#![feature(llvm_asm)]
-#![crate_type = "lib"]
-
-// Check that inline assembly expressions without any outputs
-// are marked as having side effects / being volatile
-
-// CHECK-LABEL: @assembly
-#[no_mangle]
-pub fn assembly() {
-    unsafe { llvm_asm!("") }
-// CHECK: tail call void asm sideeffect "", {{.*}}
-}