Remove res and hgrid from namelist definition, this is no longer needed

fixes ESCOMP#2179 and #9

bld/namelist_files/namelist_definition_ctsm.xml

@@ -1981,13 +1981,6 @@ Mapping file to go from one resolution/land-mask to another resolution/land-mask
 Land mask description for mksurfdata input files
 </entry> 
 
-<entry id="hgrid" type="char*10" category="mksurfdata"
-       group="default_settings"  
-       valid_values="0.25x0.25,0.5x0.5,10x10min,5x5min,360x720cru,0.9x1.25,19basin,1km-merge-10min">
-Horizontal grid resolutions for mksurfdata input files
-</entry> 
-
-
 <!-- ========================================================================================  -->
 <!-- Generic issues (resolution, mask etc.)                                                    -->
 <!-- ========================================================================================  -->
@@ -2026,13 +2019,6 @@ CLM run type.
     'branch' is a restart run in which properties of the output history files may be changed.
 </entry>
 
-<entry id="res" type="char*30" category="default_settings"
-       group="default_settings"  
-       valid_values="512x1024,360x720cru,128x256,64x128,48x96,94x192,0.23x0.31,0.47x0.63,0.9x1.25,1.9x2.5,2.5x3.33,4x5,10x15,0.125nldas2,5x5_amazon,1x1_vancouverCAN,1x1_mexicocityMEX,1x1_brazil,1x1_urbanc_alpha,1x1_numaIA,1x1_smallvilleIA,0.25x0.25,0.5x0.5,3x3min,5x5min,10x10min,0.33x0.33,0.125x0.125,ne3np4.pg3,ne4np4,ne5np4.pg3,ne16np4,ne16np4.pg3,ne30np4.pg2,ne30np4.pg3,ne30np4,ne60np4,ne120np4,ne120np4.pg2,ne120np4.pg3,ne0np4CONUS.ne30x8,ne0np4.ARCTIC.ne30x4,ne0np4.ARCTICGRIS.ne30x8,ne240np4,1km-merge-10min,C24,C48,C96,C192,C384,mpasa480,mpasa240,mpasa120,mpasa60,mpasa30,mpasa15,mpasa15-3,mpasa15-3-conus,mpasa7p5,mpasa3p75">
-Horizontal resolutions
-Note: 0.25x0.25, 0.5x0.5, 5x5min, 10x10min, 3x3min, 1km-merge-10min and 0.33x0.33 are only used for CLM toolsI
-</entry> 
-
 <entry id="ssp_rcp" type="char*8" category="default_settings"
        group="default_settings"  
        valid_values="hist,SSP1-2.6,SSP3-7.0,SSP5-3.4,SSP2-4.5,SSP1-1.9,SSP4-3.4,SSP4-6.0,SSP5-8.5">