change download-ci-llvm default from if-unchanged to true

Signed-off-by: onur-ozkan <[email protected]>

Author: onur-ozkan

src/bootstrap/src/core/config/config.rs

@@ -2761,9 +2761,7 @@ impl Config {
         };
 
         match download_ci_llvm {
-            None => {
-                (self.channel == "dev" || self.download_rustc_commit.is_some()) && if_unchanged()
-            }
+            None => self.channel == "dev" || self.download_rustc_commit.is_some(),
             Some(StringOrBool::Bool(b)) => {
                 if !b && self.download_rustc_commit.is_some() {
                     panic!(