chore: remove meshcore-lotato submodule and update .gitmodules accordingly

.gitmodules

@@ -25,9 +25,6 @@
 [submodule "vendor/meshtastic-baymesh"]
 	path = vendor/meshtastic-baymesh
 	url = git@github.com:RCGV1/firmware-Fork.git
-[submodule "vendor/meshcore-lotato"]
-	path = vendor/meshcore-lotato
-	url = git@github.com:MeshEnvy/MeshCore-lotato.git
 [submodule "vendor/TinyBBS"]
 	path = vendor/TinyBBS
 	url = git@github.com:MeshEnvy/TinyBBS.git

scripts/ci/test/fw-pio-smoke-envs.json

@@ -25,11 +25,6 @@
       "path": "vendor/meshcore-firmware",
       "heltec_v3": "Heltec_v3_companion_radio_ble",
       "rak_4631": "RAK_4631_companion_radio_ble"
-    },
-    {
-      "path": "vendor/meshcore-lotato",
-      "heltec_v3": "Heltec_v3_repeater",
-      "rak_4631": "RAK_4631_repeater"
     }
   ]
 }