Remove unused view files in accounts/ (#2153)

app/views/accounts/followers.html.haml

-- content_for :page_title do
-  = t('accounts.people_who_follow', name: display_name(@account))
-
-= render 'header', account: @account
-
-.accounts-grid
-  - if @followers.empty?
-    = render 'nothing_here'
-  - else
-    = render partial: 'grid_card', collection: @followers, as: :account, cached: true
-
-= paginate @followers

app/views/accounts/following.html.haml

-- content_for :page_title do
-  = t('accounts.people_followed_by', name: display_name(@account))
-
-= render 'header', account: @account
-
-.accounts-grid
-  - if @following.empty?
-    = render 'nothing_here'
-  - else
-    = render partial: 'grid_card', collection: @following, as: :account, cached: true
-
-= paginate @following