refactor(libstore-tests/s3-url): remove useless fixture

Author: lovesegfault

src/libstore-tests/s3-url.cc

@@ -232,23 +232,10 @@ INSTANTIATE_TEST_SUITE_P(
 // ParsedS3URL Functionality Tests
 // =============================================================================
 
-class ParsedS3URLFunctionalityTest : public ::testing::Test
-{
-protected:
-    void SetUp() override
-    {
-        // Set up clean test environment
-        unsetenv("AWS_ACCESS_KEY_ID");
-        unsetenv("AWS_SECRET_ACCESS_KEY");
-        unsetenv("AWS_SESSION_TOKEN");
-        unsetenv("AWS_PROFILE");
-    }
-};
-
 /**
  * Test that region defaults are handled correctly
  */
-TEST_F(ParsedS3URLFunctionalityTest, regionDefaultHandling)
+TEST(ParsedS3URLFunctionalityTest, regionDefaultHandling)
 {
     // Test with explicit region
     auto s3WithRegion = ParsedS3URL{
@@ -271,7 +258,7 @@ TEST_F(ParsedS3URLFunctionalityTest, regionDefaultHandling)
 /**
  * Test custom endpoint handling (e.g., for MinIO or LocalStack)
  */
-TEST_F(ParsedS3URLFunctionalityTest, customEndpointHandling)
+TEST(ParsedS3URLFunctionalityTest, customEndpointHandling)
 {
     auto s3WithEndpoint = ParsedS3URL{
         .bucket = "bucket",