Update CVE-2017-0898.yml to remove mruby references

Removed references to mruby and related issues from the CVE advisory.

Author: jasnow

rubies/ruby/CVE-2017-0898.yml

@@ -14,8 +14,6 @@ description: |
   the Ruby interpreter may crash.
 
   All users running an affected release should upgrade immediately.
-
-  Also impacted mruby - issue #3722 mentioned it was fixed in 1.3.0.
 cvss_v2: 6.4
 cvss_v3: 9.1
 patched_versions:
@@ -26,7 +24,6 @@ related:
   url:
     - https://nvd.nist.gov/vuln/detail/CVE-2017-0898
     - https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898
-    - https://github.com/mruby/mruby/issues/3722
     - https://hackerone.com/reports/212241
     - https://access.redhat.com/errata/RHSA-2017:3485
     - https://access.redhat.com/errata/RHSA-2018:0378
@@ -38,5 +35,4 @@ related:
     - https://ubuntu.com/security/notices/USN-3685-1
     - https://web.archive.org/web/20200227145420/https://www.securityfocus.com/bid/100862
     - https://github.com/advisories/GHSA-wvmx-3rv2-5jgf
-notes: |
-  - Do I need to duplicate this advisory under "mruby" directory?
+