[gnome-photos] tool-crop: Remove unused enumerated type

[Debarshi Ray <debarshir src gnome org>]

commit 44f534dd48c113cae6253c5df04755cabad49333
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Jan 20 19:20:56 2017 +0100

    tool-crop: Remove unused enumerated type
    
    Fallout from 750dc82f6ccc718cad328993b197cb138f8533f5

 src/photos-tool-crop.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/src/photos-tool-crop.c b/src/photos-tool-crop.c
index bf87922..e371310 100644
--- a/src/photos-tool-crop.c
+++ b/src/photos-tool-crop.c
@@ -111,14 +111,6 @@ struct _PhotosToolCropConstraint
   guint basis_width;
 };
 
-enum
-{
-  CONSTRAINT_COLUMN_ASPECT_RATIO = 0,
-  CONSTRAINT_COLUMN_NAME = 1,
-  CONSTRAINT_COLUMN_BASIS_HEIGHT = 2,
-  CONSTRAINT_COLUMN_BASIS_WIDTH = 3
-};
-
 /* "Free" is excluded from the GtkListBox and represented by the
  *  GtkCheckButton. Adjust accordingly.
  */