Don't reimplement ThumbCreator::flags()

It does the same thing as the default implementation

mobipocket/mobithumbnail.cpp

@@ -32,9 +32,3 @@ bool MobiThumbnail::create(const QString &path, int width, int height, QImage &i
     img=doc.thumbnail();
     return !img.isNull();
 }
-
-ThumbCreator::Flags MobiThumbnail::flags() const
-{
-    return static_cast<Flags>(None);
-}
-

mobipocket/mobithumbnail.h

@@ -17,7 +17,6 @@ class MobiThumbnail : public ThumbCreator
 public:
     MobiThumbnail() {}
     bool create(const QString &path, int, int, QImage &img) override;
-    Flags flags() const override;
 };
 
 #endif

ps/gscreator.cpp

@@ -475,11 +475,6 @@ bool GSCreator::create(const QString &path, int width, int height, QImage &img)
   return ok && loaded;
 }
 
-ThumbCreator::Flags GSCreator::flags() const
-{
-    return static_cast<Flags>(None);
-}
-
 void GSCreator::comment(Name name)
 {
     switch (name) {

ps/gscreator.h

@@ -28,7 +28,6 @@ class GSCreator : public ThumbCreator, public KDSCCommentHandler
 public:
     GSCreator() {}
     bool create(const QString &path, int, int, QImage &img) override;
-    Flags flags() const override;
     void comment(Name name) override;
 
 private:

raw/rawcreator.cpp

@@ -102,8 +102,3 @@ bool RAWCreator::create(const QString &path, int width, int height, QImage &img)
     }
     return loaded;
 }
-
-ThumbCreator::Flags RAWCreator::flags() const
-{
-    return (Flags)(0);
-}

raw/rawcreator.h

@@ -28,7 +28,6 @@ public:
     RAWCreator();
     ~RAWCreator() override;
     bool create(const QString &path, int width, int height, QImage &img) override;
-    Flags flags() const override;
 };
 
 #endif