8205327: Clean up #if INCLUDE_CDS in classLoaderExt.cpp and classLoaderExt.hpp
Summary: Clean up #if INCLUDE_CDS in classLoaderExt.* files.
Reviewed-by: dholmes
/build/
/dist/
/.idea/
nbproject/private/
/webrev
/.src-rev
/.jib/
.DS_Store
.metadata/
.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
**/JTreport/**
**/JTwork/**