Don't crop unnecessarily
Don't crop unnecessarily

Removes fake crop when cropping isn't requested, allowing us to skip
a call to the opj libs

uoregon-libraries/rais-image-server,uoregon-libraries/newspaper-jp2-viewer,uoregon-libraries/newspaper-jp2-viewer,uoregon-libraries/rais-image-server,uoregon-libraries/rais-image-server,uoregon-libraries/newspaper-jp2-viewer,uoregon-libraries/rais-image-server