valgrind: Expand suppression from PK11_FindCertFromDERCertItem/SEC_DeletePermCertificate

BUG=176891
TBR=earthdok@chromium.org

Review URL: https://codereview.chromium.org/305543002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272911 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -4738,8 +4738,6 @@
    fun:nssTrustDomain_FindTrustForCertificate
    fun:STAN_DeleteCertTrustMatchingSlot
    fun:SEC_DeletePermCertificate
-   ...
-   fun:_ZN3net15NSSCertDatabase16DeleteCertAndKeyEPKNS_15X509CertificateE
 }
 {
    bug_177213