chore: remove saveMySettings that depended on an implicit variable

src/utils/PlatformServiceMixin.ts

@@ -1212,6 +1212,11 @@ export const PlatformServiceMixin = {
      * @param changes Settings changes to save
      * @returns Promise<boolean> Success status
      */
+    /**
+     * Since this is unused, and since it relies on this.activeDid which isn't guaranteed to exist,
+     * let's take this out for the sake of safety.
+     * Totally remove after start of 2026 (since it would be obvious by then that it's not used).
+     *
     async $saveMySettings(changes: Partial<Settings>): Promise<boolean> {
       // eslint-disable-next-line @typescript-eslint/no-explicit-any
       const currentDid = (this as any).activeDid;
@@ -1221,6 +1226,7 @@ export const PlatformServiceMixin = {
       }
       return await this.$saveUserSettings(currentDid, changes);
     },
+    **/
 
     // =================================================
     // CACHE MANAGEMENT METHODS
@@ -2040,7 +2046,8 @@ declare module "@vue/runtime-core" {
       did: string,
       changes: Partial<Settings>,
     ): Promise<boolean>;
-    $saveMySettings(changes: Partial<Settings>): Promise<boolean>;
+    // @deprecated; see implementation note above
+    // $saveMySettings(changes: Partial<Settings>): Promise<boolean>;
 
     // Cache management methods
     $refreshSettings(): Promise<Settings>;