更新 cast_lossless.rs

Co-authored-by: Timo <[email protected]>

Author: kiscad

clippy_lints/src/casts/cast_lossless.rs

@@ -25,14 +25,7 @@ pub(super) fn check(
     // The suggestion is to use a function call, so if the original expression
     // has parens on the outside, they are no longer needed.
     let mut applicability = Applicability::MachineApplicable;
-    let opt = snippet_opt(
-        cx,
-        if cast_op.span.from_expansion() {
-            cast_op.span.source_callsite()
-        } else {
-            cast_op.span
-        },
-    );
+    let opt = snippet_opt(cx, cast_op.span.source_callsite());
     let sugg = opt.as_ref().map_or_else(
         || {
             applicability = Applicability::HasPlaceholders;