Fix CH1903 datum transformation parameters as per bug https://trac.osgeo.org/grass/ticket/35

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@38376 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/datum.table

@@ -66,8 +66,7 @@ carthage "Carthage"	  	  clark80	dx=-263.0	dy=6.0	dz=431.0
 hermannskogel "Militar_Geographische_Institut"	  bessel	dx=653	    dy=-212     dz=449
 # From NIMA document
 ire65    "TM65"                   modif_airy    dx=506      dy=-122     dz=611
-# http://www.asprs.org/asprs/resources/grids/07-2001-swiss.pdf
-ch1903   "CH1903"     bessel        dx=674.253  dy=15.053   dz=405.324
+ch1903   "CH1903"     bessel        dx=674.374  dy=15.056   dz=405.346
 # http://www.asprs.org/asprs/resources/grids/01-2001-france.pdf and http://crs.ifag.de/
 ntf      "Nouvelle_Triangulation_Francaise"                    clark80IGN       dx=-168     dy=-60      dz=320
 etrs89   "European_Terrestrial_Reference_System_1989"   grs80       dx=0        dy=0       dz=0

lib/gis/datumtransform.table

@@ -34,9 +34,6 @@ nad83	"nadgrids=MD"           "Maryland" "Transforms 'Old NAD83' to 'HPGN NAD83'
 nad83	"nadgrids=TN"           "Tennessee" "Transforms 'Old NAD83' to 'HPGN NAD83'"
 nad83	"nadgrids=WI"           "Wisconsin" "Transforms 'Old NAD83' to 'HPGN NAD83'"
 nad83	"nadgrids=WO"           "Washington - Oregon" "Transforms 'Old NAD83' to 'HPGN NAD83'"
-# http://www.asprs.org/asprs/resources/grids/07-2001-swiss.pdf
-# Not sure about this (esp. difference between ch1903 and ch1903+
-# ch1903  "towgs84=660.077,13.551,369.344,2.484,1.783,2.939,0.566" "Switzerland" "Accuracy approx. 1m"
 # http://www.gps.gov.uk/guide6.asp
 osgb36  "towgs84=446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894" "Great Britain" "Accuracy 5m"
 # http://crs.ifag.de/