Disable the new data model interface code across the board for now.

On Linux we were using the "check" mode, but it's buggy in ways that cause app
crashes (see project-chip#35306).
Just disabling it for now so this is not an issue for SVE.

src/app/common_flags.gni

@@ -27,7 +27,9 @@ declare_args() {
   #   - check:    runs BOTH datamodel and non-data-model (if possible) functionality and compares results
   #   - enabled:  runs only the data model interface (does not use the legacy code)
   if (current_os == "linux") {
-    chip_use_data_model_interface = "check"
+    # "check" is broken, see https://github.com/project-chip/connectedhomeip/issues/35306
+    #chip_use_data_model_interface = "check"
+    chip_use_data_model_interface = "disabled"
   } else {
     chip_use_data_model_interface = "disabled"
   }