build: Remove tr3000_v1_ubootmod.config from the build matrix.

Author: tosaki

.github/workflows/build-openwrt.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         branch: [openwrt-25.12]
-        config: [base.config, alderlake.config, tr3000_v1.config, tr3000_v1_ubootmod.config]
+        config: [base.config, alderlake.config, tr3000_v1.config]
         # Add more branches/configs as needed
       fail-fast: false # Optional: Allow other jobs to continue if one fails
     outputs: