Remove includeHash option to toModPackString

Since the Mod Portal provides SHA1 hashes it makes sense to always
include the hashes with mod pack strings if they are available.

packages/lib/data/ModPack.js

@@ -170,16 +170,9 @@ class ModPack {
 		return json;
 	}
 
-	toModPackString(includeHash = false) {
+	toModPackString() {
 		const json = this.toJSON();
 		delete json.id;
-		if (json.mods && !includeHash) {
-			json.mods = json.mods.map(m => {
-				m = { ...m };
-				delete m.sha1;
-				return m;
-			});
-		}
 
 		// eslint-disable-next-line node/no-sync
 		let buf = zlib.deflateSync(JSON.stringify(json));

test/lib/data/ModPack.js

@@ -16,7 +16,7 @@ describe("lib/data/ModPack", function() {
 					throw validate.errors;
 				}
 				assert.deepEqual(new ModPack(json), pack);
-				const packStringed = ModPack.fromModPackString(pack.toModPackString(true));
+				const packStringed = ModPack.fromModPackString(pack.toModPackString());
 				packStringed.id = pack.id;
 				assert.deepEqual(packStringed, pack);
 			}