remove homerow combos

config/cradio.keymap

···
             key-positions = <20 29>;
             bindings = <&caps_word>;
         };
-        combo_tab {
-            timeout-ms = <30>;
-            key-positions = <22 23>;
-            bindings = <&lt FUN TAB>;
-        };
-        combo_spc {
-            timeout-ms = <30>;
-            key-positions = <12 13>;
-            bindings = <&lt NAV SPC>;
-        };
-        combo_ret {
-            timeout-ms = <30>;
-            key-positions = <16 17>;
-            bindings = <&lt SYM RET>;
-        };
-        combo_bspc {
-            timeout-ms = <30>;
-            key-positions = <26 27>;
-            bindings = <&lt NUM BSPC>;
-        };
         combo_esc {
             timeout-ms = <100>;
             key-positions = <10 19>;