remove dead proxy service and sora storage action

backend/internal/handler/admin/sora_handler_test.go

@@ -25,35 +25,6 @@ func TestSoraHandler_ListGenerations(t *testing.T) {
 	assert.Contains(t, w.Body.String(), "items")
 }
 
-func TestSoraHandler_ClearUserStorage_InvalidUserID(t *testing.T) {
-	gin.SetMode(gin.TestMode)
-
-	handler := &SoraHandler{}
-
-	testCases := []struct {
-		name     string
-		userID   string
-		expected int
-	}{
-		{"empty string", "", http.StatusBadRequest},
-		{"non-numeric", "abc", http.StatusBadRequest},
-		{"float", "1.5", http.StatusBadRequest},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			w := httptest.NewRecorder()
-			c, _ := gin.CreateTestContext(w)
-			c.Request = httptest.NewRequest(http.MethodDelete, "/admin/sora/users/"+tc.userID+"/storage", nil)
-			c.Params = gin.Params{{Key: "id", Value: tc.userID}}
-
-			handler.ClearUserStorage(c)
-
-			assert.Equal(t, tc.expected, w.Code)
-		})
-	}
-}
-
 func TestSoraSystemStatsResponse_Fields(t *testing.T) {
 	resp := SoraSystemStatsResponse{
 		TotalUsers:        10,