Remove MAPNIK_BUNDLED_SHARE_DIRECTORY build option

- this was intended to be used by python-mapnik
 - but it is not currently, so let's clean it up
 - todo: get actual ICU_DATA,PROJ_LIB,GDAL_DATA values from those depependent libs

SConstruct

@@ -319,7 +319,6 @@ opts.AddVariables(
     ('PATH_REMOVE', 'A path prefix to exclude from all known command and compile paths (create multiple excludes separated by :)', ''),
     ('PATH_REPLACE', 'Two path prefixes (divided with a :) to search/replace from all known command and compile paths', ''),
     ('MAPNIK_NAME', 'Name of library', 'mapnik'),
-    BoolVariable('MAPNIK_BUNDLED_SHARE_DIRECTORY', 'For portable packaging: instruct mapnik-config to report relative paths to bundled GDAL_DATA, PROJ_LIB, and ICU_DATA','False'),
 
     # Boost variables
     # default is '/usr/include', see FindBoost method below

utils/mapnik-config/build.py

@@ -131,11 +131,6 @@ mapnik_bundled_gdal_data = ''
 mapnik_bundled_proj_data = ''
 mapnik_bundled_icu_data = ''
 
-if config_env.get('MAPNIK_BUNDLED_SHARE_DIRECTORY'):
-    mapnik_bundled_gdal_data = 'lib/mapnik/share/gdal'
-    mapnik_bundled_proj_data = 'lib/mapnik/share/proj'
-    mapnik_bundled_icu_data = 'lib/mapnik/share/icu'
-
 configuration = {
     "git_revision": git_revision,
     "git_describe": git_describe,