remove pixels_per_mm option

embroider.inx

@@ -4,7 +4,6 @@
     <id>jonh.embroider</id>
     <dependency type="executable" location="extensions">embroider.py</dependency>
     <dependency type="executable" location="extensions">inkex.py</dependency>
-    <param name="pixels_per_mm" type="float" min="1" max="100" precision="2" _gui-text="Pixels per millimeter">10</param>
     <param name="zigzag_spacing_mm"       type="float"   min="0.01" max="5.00" precision="2" _gui-text="Zigzag spacing (mm)">0.40</param>
     <param name="row_spacing_mm"       type="float"   min="0.01" max="5.00" precision="2" _gui-text="Row spacing (mm)">0.25</param>
     <param name="max_stitch_len_mm"       type="float"   min="0.1" max="100.0" _gui-text="Maximum stitch length (mm)">3.0</param>

embroider.py

@@ -207,7 +207,6 @@ class EmbroideryElement(object):
             return default
 
         if param.endswith('_mm'):
-            # print >> dbg, "get_float_param", param, value, "*", self.options.pixels_per_mm
             value = value * PIXELS_PER_MM
 
         return value
@@ -1922,10 +1921,6 @@ class Embroider(inkex.Effect):
                                      action="store", type="int",
                                      dest="max_backups", default=5,
                                      help="Max number of backups of output files to keep.")
-        self.OptionParser.add_option("-p", "--pixels_per_mm",
-                                     action="store", type="float",
-                                     dest="pixels_per_mm", default=10,
-                                     help="Number of on-screen pixels per millimeter.")
         self.patches = []
 
     def handle_node(self, node):