CLDR-5708 Remove misleading territories attribute from supplementalData (#4445)

supplementalData.xml lists the top territories for languages under the `<languageData>` area -- however it's not clear and it's best for people to consume the data from `<territoryInfo>` directly.

This quickly removes the territory information -- but there is additional cleanup to do. I just wanted to get this simple change out there to see how many breaks.

CLDR-5708

Scripts ran
```
mvn package -DskipTests=true &&  java -jar tools/cldr-code/target/cldr-code.jar ConvertLanguageData &&  java -jar tools/cldr-code/target/cldr-code.jar GenerateLikelySubtags &&  java -jar tools/cldr-code/target/cldr-code.jar GenerateTestData
```

Author: conradarcturus

common/dtd/ldmlSupplemental.dtd

@@ -147,6 +147,7 @@ CLDR data files are interpreted according to the LDML specification (http://unic
 <!ATTLIST language territories NMTOKENS #IMPLIED >
     <!--@MATCH:set/validity/region-->
     <!--@VALUE-->
+    <!--@DEPRECATED-->
 <!ATTLIST language variants NMTOKENS #IMPLIED >
     <!--@VALUE-->
 <!ATTLIST language draft (approved | contributed | provisional | unconfirmed | true | false) #IMPLIED >

common/supplemental/attributeValueValidity.xml

@@ -193,7 +193,6 @@
 			<attributeValues dtds='supplementalData' elements='info' attributes='rounding' type='regex'>[0-9]+</attributeValues>
 			<attributeValues dtds='ldml' elements='key' attributes='type'>$_bcp47_keys</attributeValues>
 			<attributeValues dtds='supplementalData' elements='language' attributes='scripts' type='list'>$_script</attributeValues>
-			<attributeValues dtds='supplementalData' elements='language' attributes='territories' type='list'>$_region</attributeValues>
 			<attributeValues dtds='ldml' elements='language' attributes='type'>$localeOrDeprecated</attributeValues>
 			<attributeValues dtds='supplementalData' elements='language' attributes='variants'>$_variant</attributeValues>
 			<attributeValues dtds='supplementalData' elements='languageAlias' attributes='replacement' type='locale'/>