Index: trunk/psphot/src/psphotFitSourcesLinearStack.c
===================================================================
--- trunk/psphot/src/psphotFitSourcesLinearStack.c	(revision 25755)
+++ trunk/psphot/src/psphotFitSourcesLinearStack.c	(revision 27532)
@@ -9,6 +9,4 @@
 // these are used to determine the simultaneous linear fit of fluxes.
 // the analysis is performed wrt the simulated pixel values
-
-static bool SetBorderMatrixElements (psSparseBorder *border, pmReadout *readout, psArray *sources, bool constant_weights, psImageMaskType markVal);
 
 bool psphotFitSourcesLinear (pmReadout *readout, psArray *sources, psMetadata *recipe, pmPSF *psf, bool final) {
@@ -194,58 +192,2 @@
     return true;
 }
-
-// Calculate the weight terms for the sky fit component of the matrix.  This function operates
-// on the pixels which correspond to all of the sources of interest.  These elements fill in
-// the border matrix components in the sparse matrix equation.
-static bool SetBorderMatrixElements (psSparseBorder *border, pmReadout *readout, psArray *sources, bool constant_weights, psImageMaskType markVal) {
-
-    // generate the image-wide weight terms
-    // turn on MARK for all image pixels
-    psRegion fullArray = psRegionSet (0, 0, 0, 0);
-    fullArray = psRegionForImage (readout->mask, fullArray);
-    psImageMaskRegion (readout->mask, fullArray, "OR", markVal);
-
-    // turn off MARK for all object pixels
-    for (int i = 0; i < sources->n; i++) {
-        pmSource *source = sources->data[i];
-        pmModel *model = pmSourceGetModel (NULL, source);
-        if (model == NULL) continue;
-        float x = model->params->data.F32[PM_PAR_XPOS];
-        float y = model->params->data.F32[PM_PAR_YPOS];
-        psImageMaskCircle (source->maskView, x, y, model->radiusFit, "AND", PS_NOT_IMAGE_MASK(markVal));
-    }
-
-    // accumulate the image statistics from the masked regions
-    psF32 **image  = readout->image->data.F32;
-    psF32 **variance = readout->variance->data.F32;
-    psImageMaskType  **mask   = readout->mask->data.PS_TYPE_IMAGE_MASK_DATA;
-
-    double w, x, y, x2, xy, y2, xc, yc, wt, f, fo, fx, fy;
-    w = x = y = x2 = xy = y2 = fo = fx = fy = 0;
-
-    int col0 = readout->image->col0;
-    int row0 = readout->image->row0;
-
-    for (int j = 0; j < readout->image->numRows; j++) {
-        for (int i = 0; i < readout->image->numCols; i++) {
-            if (mask[j][i]) continue;
-            if (constant_weights) {
-                wt = 1.0;
-            } else {
-                wt = variance[j][i];
-            }
-            f = image[j][i];
-            w   += 1/wt;
-            fo  += f/wt;
-        }
-    }
-
-    // turn off MARK for all image pixels
-    psImageMaskRegion (readout->mask, fullArray, "AND", PS_NOT_IMAGE_MASK(markVal));
-
-    // set the Border T elements
-    psSparseBorderElementG (border, 0, fo);
-    psSparseBorderElementT (border, 0, 0, w);
-
-    return true;
-}