Remove statement condition, content will never be equal to None

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29025 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -316,7 +316,6 @@ class Image(File, OFSImage):
     mime_type = str(mime_type)
     src_mimetype = self.getContentType()
     content = '%s' % self.getData()
-    if content is not None:
     portal_transforms = getToolByName(self, 'portal_transforms')
     result = portal_transforms.convertToData(mime_type, content,
                                              object=self, context=self,
@@ -328,9 +327,6 @@ class Image(File, OFSImage):
           'portal_transforms failed to convert to %s: %r' % (mime_type, self))
       result = ''
     return mime_type, result
-    else:
-      # text_content is not set, return empty string instead of None
-      return mime_type, ''
 
   # Conversion API
   security.declareProtected(Permissions.ModifyPortalContent, 'convert')