Remove the optimization changes from the example branch.

This is being taken care of in another PR. #236

SimPEG/Optimization.py

@@ -990,18 +990,4 @@ class ProjectedGNCG(BFGS, Minimize, Remember):
                     cgFlag = 1
                 # End CG Iterations
 
-            # Take a gradient step on the active cells if exist
-            if temp != self.xc.size:
-
-                rhs_a = (Active) * -self.g
-
-                dm_i = max( abs( delx ) )
-                dm_a = max( abs(rhs_a) )
-
-                delx = delx + rhs_a * dm_i / dm_a /10.
-
-            # Only keep gradients going in the right direction on the active set
-            indx = ((self.xc<=self.lower) & (delx < 0)) | ((self.xc>=self.upper) & (delx > 0))
-            delx[indx] = 0.
-
             return delx