wikitech - remove DHE ciphers

having DHE-RSA-AES128-GCM-SHA256 & kEDH+AESGCM

was an oversight, copied from production and was removed
there again in I39b389b63ae6b8 (and Ie9badde555d3)

Change-Id: Ie991054d8b5526fac0857563500fd48a4ccdea1c
Merge "wikitech - remove DHE ciphers" into production