Turn off formatting tests by default

Author: Alrik Vidstrom

extras/tests/Arduino_POSIXStorage_Test/Arduino_POSIXStorage_Test.ino

@@ -30,7 +30,7 @@ constexpr enum TestTypes selectedTest = TEST_PORTENTA_C33_SDCARD;
 
 // Uncomment the line below to include testing of LITTLEFS and FAT formatting with mkfs():
 
-#define PERFORM_FORMATTING_TESTS
+//#define PERFORM_FORMATTING_TESTS
 
 // <-- !!! TEST CONFIGURATION !!!