Remove secondary CTA link from account merge confirmation email

bug: sharelatex/web-sharelatex-internal#987
Signed-off-by: Simon Detheridge <s@sd.ai>

services/web/app/coffee/Features/Email/EmailBuilder.coffee

@@ -51,8 +51,6 @@ templates.accountMergeToOverleafAddress = CTAEmailTemplate({
 		"""
 	ctaText: () -> "Confirm Account Merge"
 	ctaURL: (opts) -> opts.tokenLinkUrl
-	secondaryMessage: (opts) ->
-		"If the button does not appear, open this link in your browser: #{opts.tokenLinkUrl}"
 })
 
 templates.accountMergeToSharelatexAddress = templates.accountMergeToOverleafAddress