RFR: 8169880: Remove the sun.reflect.noCaches option

[Claes Redestad]

Hi,

The undocumented sun.reflect.noCaches option was put in place as a
debugging aid when caching was added to core reflection[1], with the
intent to remove it once overly inefficient uses of reflection was
weeded out[2]. This appears to have been forgotten and should be
cleaned up.

Webrev: http://cr.openjdk.java.net/~redestad/8169880/webrev.01/
Bug: https://bugs.openjdk.java.net/browse/JDK-8169880

Thanks!

/Claes

[1] https://bugs.openjdk.java.net/browse/JDK-4419062
[2] https://bugs.openjdk.java.net/browse/JDK-4430358