remove open versions as redundant, just use fillcolor=none (merge from devbr6)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@34691 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/symbol/symbol/geology/strike_open_box

@@ -1,16 +0,0 @@
-VERSION 1.0
-BOX -0.5 -0.5 0.5 0.5
-STRING
-  LINE
-    -1 0
-     1 0
-  END
-END
-STRING
-  LINE
-    -0.2 0
-    -0.2 0.4
-    0.2 0.4
-    0.2 0
-  END
-END

lib/symbol/symbol/geology/strike_open_circle

@@ -1,14 +0,0 @@
-VERSION 1.0
-BOX -0.5 -0.5 0.5 0.5
-STRING
-  LINE
-    -1 0
-     1 0
-  END
-END
-POLYGON
-  FCOLOR NONE
-  RING
-    ARC 0 0 0.333 0 180
-  END
-END

lib/symbol/symbol/geology/strike_open_triangle

@@ -1,15 +0,0 @@
-VERSION 1.0
-BOX -0.5 -0.5 0.5 0.5
-STRING
-  LINE
-    -1 0
-     1 0
-  END
-END
-STRING
-  LINE
-    -0.25 0
-    0 0.5
-    0.25 0
-  END
-END