Revert "Fix a memory leak caused by Banzai::Filter::SanitizationFilter"
Revert "Fix a memory leak caused by Banzai::Filter::SanitizationFilter"

This reverts commit 504a3b5e6f0b2e2957cf1e4d9d8eebbf32234bdb.

axilleas/gitlabhq,dplarson/gitlabhq,icedwater/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,icedwater/gitlabhq,t-zuehlsdorff/gitlabhq,jirutka/gitlabhq,allysonbarros/gitlabhq,LUMC/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,daiyu/gitlab-zh,openwide-java/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,dplarson/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,shinexiao/gitlabhq,jirutka/gitlabhq,dplarson/gitlabhq,openwide-java/gitlabhq,daiyu/gitlab-zh,dreampet/gitlab,iiet/iiet-git,daiyu/gitlab-zh,jirutka/gitlabhq,allysonbarros/gitlabhq,darkrasid/gitlabhq,LUMC/gitlabhq,allysonbarros/gitlabhq,dreampet/gitlab,screenpages/gitlabhq,darkrasid/gitlabhq,dreampet/gitlab,LUMC/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,screenpages/gitlabhq,LUMC/gitlabhq,htve/GitlabForChinese,icedwater/gitlabhq,screenpages/gitlabhq,openwide-java/gitlabhq,screenpages/gitlabhq,shinexiao/gitlabhq,daiyu/gitlab-zh,jirutka/gitlabhq,shinexiao/gitlabhq,mmkassem/gitlabhq,dreampet/gitlab,darkrasid/gitlabhq,dplarson/gitlabhq,iiet/iiet-git,iiet/iiet-git,stoplightio/gitlabhq,htve/GitlabForChinese,shinexiao/gitlabhq,allysonbarros/gitlabhq,icedwater/gitlabhq,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq