6899533: SecureClassLoader and URLClassLoader have unnecessary check for createClassLoader permission
Summary: Remove code that is no longer necessary now that pre-JDK 1.2 SecurityManager methods are not supported.
Reviewed-by: mchung
8209361: [AOT] Unexpected number of references for JVMTI_HEAP_REFERENCE_CONSTANT_POOL [111-->111]: 0 (expected at least 1)
Reviewed-by: coleenp, dholmes