🔥 Remove obsolete Molarity units (#1174)

Remove duplicate, obsolete units with plural naming instead of singular naming.

- MolesPerCubicMeter
- MolesPerLiter (plus prefixes)

Author: angularsen

Common/UnitDefinitions/Molarity.json

@@ -1,53 +1,13 @@
 {
   "Name": "Molarity",
-  "BaseUnit": "MolesPerCubicMeter",
+  "BaseUnit": "MolePerCubicMeter",
   "XmlDocSummary": "Molar concentration, also called molarity, amount concentration or substance concentration, is a measure of the concentration of a solute in a solution, or of any chemical species, in terms of amount of substance in a given volume. ",
   "XmlDocRemarks": "https://en.wikipedia.org/wiki/Molar_concentration",
   "BaseDimensions": {
     "L": -3,
     "N": 1
   },
   "Units": [
-    {
-      "SingularName": "MolesPerCubicMeter",
-      "PluralName": "MolesPerCubicMeter",
-      "ObsoleteText": "Use the singular unit instead.",
-      "SkipConversionGeneration": true,
-      "AllowAbbreviationLookup": false,
-      "BaseUnits": {
-        "L": "Meter",
-        "N": "Mole"
-      },
-      "FromUnitToBaseFunc": "{x}",
-      "FromBaseToUnitFunc": "{x}",
-      "Prefixes": [],
-      "Localization": [
-        {
-          "Culture": "en-US",
-          "Abbreviations": [ "mol/m³" ]
-        }
-      ]
-    },
-    {
-      "SingularName": "MolesPerLiter",
-      "PluralName": "MolesPerLiter",
-      "ObsoleteText": "Use the singular unit instead.",
-      "SkipConversionGeneration": true,
-      "AllowAbbreviationLookup": false,
-      "BaseUnits": {
-        "L": "Decimeter",
-        "N": "Mole"
-      },
-      "FromUnitToBaseFunc": "{x} / 1e-3",
-      "FromBaseToUnitFunc": "{x} * 1e-3",
-      "Prefixes": [ "Pico", "Nano", "Micro", "Milli", "Centi", "Deci" ],
-      "Localization": [
-        {
-          "Culture": "en-US",
-          "Abbreviations": [ "mol/L", "M" ]
-        }
-      ]
-    },
     {
       "SingularName": "MolePerCubicMeter",
       "PluralName": "MolesPerCubicMeter",