Remove `Compressed to` column from build artifacts browser

See #10982.

app/views/projects/artifacts/_tree_directory.html.haml

@@ -6,4 +6,3 @@
     %span.str-truncated
       = link_to directory.name, path_to_directory
   %td
-  %td

app/views/projects/artifacts/_tree_file.html.haml

@@ -7,5 +7,3 @@
       = link_to file.name, path_to_file
   %td
     = number_to_human_size(file.metadata[:size], precision: 2)
-  %td
-    = number_to_human_size(file.metadata[:zipped], precision: 2)

app/views/projects/artifacts/browse.html.haml

@@ -15,7 +15,6 @@
         %tr
           %th Name
           %th Size
-          %th Compressed to
       = render partial: 'tree_directory', collection: @entry.directories(parent: true), as: :directory
       = render partial: 'tree_file', collection: @entry.files, as: :file