Revert "Fix Compile Warnings (#5963)"

This reverts commit b83e16dbdd.

Found regressions like auto orientation didn't work anymore after this change, revert it

src/slic3r/GUI/Widgets/WebView.cpp

@@ -373,7 +373,7 @@ bool WebView::RunScript(wxWebView *webView, wxString const &javascript)
         }, NULL);
         return true;
 #endif
-    } catch (std::exception&) {
+    } catch (std::exception &e) {
         return false;
     }
 }