Auto merge of rust-lang#15136 - mohsen-alizadeh:13908-delete-matching-brace-key-binding, r=Veykril

delete matching brace key binding

closes rust-lang#13908

Author: bors

editors/code/package.json

@@ -293,11 +293,6 @@
                 "key": "ctrl+shift+u",
                 "when": "editorTextFocus && editorLangId == rust"
             },
-            {
-                "command": "rust-analyzer.matchingBrace",
-                "key": "ctrl+shift+m",
-                "when": "editorTextFocus && editorLangId == rust"
-            },
             {
                 "command": "rust-analyzer.joinLines",
                 "key": "ctrl+shift+j",