DERBY-3986: Stop dropping dummy files in the source tree in order to determine whether the compiler is modern enough.
DERBY-3986: Stop dropping dummy files in the source tree in order to determine whether the compiler is modern enough.

git-svn-id: 2c06e9c5008124d912b69f0b82df29d4867c0ce2@727725 13f79535-47bb-0310-9956-ffa450edef68

apache/derby,trejkaz/derby,apache/derby,trejkaz/derby,trejkaz/derby,apache/derby,apache/derby