Use OSM data for areas in North and South Dakota

Author: evansiroky

CHANGELOG.md

@@ -3,6 +3,7 @@
 ### Zone Changes
 
 * Add new zone `America/Coyhaique` by taking area from `America/Santiago`.
+* Directly use OpenStreetMap data for areas in North and South Dakota.
 
 ## 2025a
 

osmBoundarySources.json

@@ -899,14 +899,6 @@
   "Australia-Sydney-tz": {
     "timezone": "Australia/Sydney"
   },
-  "Corson County, SD": {
-    "name": "Corson County",
-    "nist:state_fips": "46"
-  },
-  "Dewey County, SD": {
-    "name": "Dewey County",
-    "nist:state_fips": "46"
-  },
   "Europe-Amsterdam-tz": {
     "timezone": "Europe/Amsterdam"
   },
@@ -1084,10 +1076,6 @@
   "Extent of Nepalese Claims at Kalapani Territory": {
     "name": "Extent of Nepalese Claims at Kalapani Territory"
   },
-  "Grant County, ND": {
-    "name": "Grant County",
-    "nist:state_fips": "38"
-  },
   "Indian-Antananarivo-tz": {
     "timezone": "Indian/Antananarivo"
   },
@@ -1241,9 +1229,5 @@
   },
   "Panama": {
     "ISO3166-1": "PA"
-  },
-  "Sioux County, ND": {
-    "name": "Sioux County",
-    "nist:state_fips": "38"
   }
 }

timezones.json

@@ -628,16 +628,6 @@
       "op": "init",
       "source": "overpass",
       "id": "America-Chicago-tz"
-    }, {
-      "op": "union",
-      "source": "manual-polygon",
-      "data": [[[-100.475,44.533],[-100.855,44.162],[-99,44],[-100.475,44.533]]],
-      "description": "Include small region east of Fort Pierre"
-    }, {
-      "op": "difference",
-      "source": "manual-polygon",
-      "data": [[[-102,46],[-101.326,46.146],[-101.324,45.938],[-102,46]]],
-      "description": "Draw the line slightly east of ND 31"
     }, {
       "op": "difference",
       "source": "manual-polygon",
@@ -720,27 +710,6 @@
       "op": "init",
       "source": "overpass",
       "id": "America-Denver-tz"
-    }, {
-      "op": "union",
-      "source": "overpass",
-      "id": "Sioux County, ND"
-    }, {
-      "op": "difference",
-      "source": "manual-polygon",
-      "data": [[[-98,44],[-98,46.5],[-100.8,46.57],[-101.326,46.146],[-101.324,45.938],[-100.583,44.865],[-100.475,44.533],[-100.855,44.162],[-98,44]]],
-      "description": "anomalies in North and South Dakota"
-    }, {
-      "op": "union",
-      "source": "overpass",
-      "id": "Grant County, ND"
-    }, {
-      "op": "union",
-      "source": "overpass",
-      "id": "Corson County, SD"
-    }, {
-      "op": "union",
-      "source": "overpass",
-      "id": "Dewey County, SD"
     }
   ],
   "America/Detroit": [