Revert "Show 2018 Apr 01 team names in thread updates and other posts generated from JSON."

This reverts commit 99bb9d667b871a6451476010558bd1315e281d0b.

src/General/Build.coffee

@@ -44,7 +44,6 @@ Build =
       isArchived: !!data.archived
       # file status
       fileDeleted: !!data.filedeleted
-      xa18:     data.xa18
     o.info =
       subject:  Build.unescape data.sub
       email:    Build.unescape data.email

src/General/Build/PostInfo.html

@@ -7,7 +7,6 @@
       ?{tripcode}{ <span class="postertrip">${tripcode}</span>}
       ?{pass}{ <span title="Pass user since ${pass}" class="n-pu"></span>}
       ?{capcode}{ <strong class="capcode hand id_${capcodeLC}" title="Highlight posts by ${capcodePlural}">## ${capcode}</strong>}
-      ?{!capcode && typeof o.xa18 !== "undefined"}{ <strong class="capcode hand n-atb n-atb-${o.xa18} id_at${o.xa18}"></strong>}
     ?{email}{</a>}
     ?{boardID === "f" && !o.isReply || capcodeDescription}{}{ }
     ?{capcodeDescription}{ <img src="${staticPath}${capcodeLC}icon${gifIcon}" alt="${capcode} Icon" title="This user is ${capcodeDescription}." class="identityIcon retina">}