"drawing rotated strings" Workaround is obsolete - fixed with JDK1.5

[Pitterling]

JDK-4312117 - Drawing with AffineTransform widens text has been fixed since JDK1.5

jcommon requires 1.6 - therefore all coding related to this workaround can be removed

e.g. isUseDrawRotatedStringWorkaround setUseDrawRotatedStringWorkaround