tsk-14: Fix startup crash (#16)

Closes #14

Reviewed-on: phoenix/textsender-auth#16
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/handler/register_test.go

@@ -1,7 +1,6 @@
 package handler
 
 import (
-	"context"
 	"encoding/json"
 	"net/http"
 	"net/http/httptest"
@@ -10,7 +9,6 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"git.kundeng.us/phoenix/textsender-auth/internal/db"
 	"git.kundeng.us/phoenix/textsender-auth/internal/handler/endpoint"
 )
 
@@ -34,11 +32,3 @@ func TestCreateUserWithMock(t *testing.T) {
 
 	assert.NotNil(t, response.Data[0].Id, "Id should not be nil")
 }
-
-func resetTestDB(t *testing.T) {
-	t.Helper()
-	_, err := db.Pool.Exec(context.Background(), "DELETE FROM users")
-	if err != nil {
-		t.Fatalf("Failed to reset test database: %v", err)
-	}
-}