main/samba: remove duplicate CVE in secfixes comment

CVE-2018-14629 was fixed in 4.8.11 according
https://www.samba.org/samba/history/samba-4.8.11.html

ref #11914

main/samba/APKBUILD

@@ -73,7 +73,6 @@ builddir="$srcdir/$pkgname-$pkgver"
 #     - CVE-2018-14629
 #     - CVE-2019-3880
 #   4.8.8-r0:
-#     - CVE-2018-14629
 #     - CVE-2018-16841
 #     - CVE-2018-16851
 #   4.8.4-r0: