Some fixes as hinted by Coverity (#3558)

rtengine/dcrop.cc

@@ -397,12 +397,8 @@ void Crop::update (int todo)
             MyTime t1aue, t2aue;
             t1aue.set();
 
-            int crW, crH;
-
-            if(settings->leveldnv == 0) {
-                crW = 100;
-                crH = 100;
-            }
+            int crW = 100; // settings->leveldnv == 0
+            int crH = 100; // settings->leveldnv == 0
 
             if(settings->leveldnv == 1) {
                 crW = 250;
@@ -1143,7 +1139,7 @@ bool Crop::setCropSizes (int rcx, int rcy, int rcw, int rch, int skip, bool inte
     ProcParams& params = parent->params;
 
     parent->ipf.transCoord (parent->fw, parent->fh, bx1, by1, bw, bh, orx, ory, orw, orh);
-    
+
     if (check_need_larger_crop_for_lcp_distortion(parent->fw, parent->fh, orx, ory, orw, orh, parent->params)) {
         // TODO - this is an estimate of the max distortion relative to the image size. ATM it is hardcoded to be 15%, which seems enough. If not, need to revise
         int dW = int(double(parent->fw) * 0.15 / (2 * skip));
@@ -1173,7 +1169,7 @@ bool Crop::setCropSizes (int rcx, int rcy, int rcw, int rch, int skip, bool inte
         orw = min(x2 - x1, parent->fw - orx);
         orh = min(y2 - y1, parent->fh - ory);
     }
-    
+
 
     PreviewProps cp (orx, ory, orw, orh, skip);
     int orW, orH;