Remove old JIRA issues link and re-enable notifications (#217)

Author: Bukama

.asf.yaml

@@ -35,5 +35,5 @@ github:
     issues: true
 notifications:
   commits: commits@maven.apache.org
-  # issues: issues@maven.apache.org
-  # pullrequests: issues@maven.apache.org
+  issues: issues@maven.apache.org
+  pullrequests: issues@maven.apache.org

.github/ISSUE_TEMPLATE/config.yml

@@ -24,7 +24,3 @@ contact_links:
   - name: Project Mailing Lists
     url: https://maven.apache.org/mailing-lists.html
     about: Please ask a question or discuss here
-
-  - name: Old JIRA Issues
-    url: https://issues.apache.org/jira/projects/MSOURCES
-    about: Please search old JIRA issues