Revert "Auto merge of rust-lang#141372 - khuey:ir_call_dbg_loc, r=jieyouxu"

This reverts commit 5e16c66, reversing
changes made to 038d599.

Author: jieyouxu

compiler/rustc_codegen_ssa/src/mir/block.rs

@@ -1197,7 +1197,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             (_, Some(llfn)) => llfn,
             _ => span_bug!(span, "no instance or llfn for call"),
         };
-        self.set_debug_loc(bx, mir::SourceInfo { span: fn_span, ..source_info });
         helper.do_call(
             self,
             bx,