Removed completed TODOs.

DG_Approximation.py

@@ -29,7 +29,6 @@ TODO: Discuss if folds are valid for all possible num_grid_cells/fold_len
 TODO: Contemplate combining get_cells() and _get_cells()
 
 Urgent:
-TODO: Remove abstract decorator from 'randomize()' for ICs -> Done
 TODO: Change heaviside random to uniform(-100, 100)
 TODO: Adjust Heaviside to have non-symmetric values (left- and right_value)
 TODO: Rename 'adjustment' to 'shift'

Troubled_Cell_Detector.py

@@ -2,10 +2,6 @@
 """
 @author: Laura C. Kühle, Soraya Terrab (sorayaterrab)
 
-TODO: Introduce Adjusted Outer Fence method in Boxplot using global_mean
-    -> Done
-TODO: Introduce overlapping cells for adjacent folds in Boxplot -> Done
-TODO: Extract fold computing from TC checking -> Done
 TODO: Vectorize _get_cells() in Boxplot method
 TODO: Introduce lower/upper extreme outliers in Boxplot
     (each cell is also checked for neighboring domains if existing)