htaccess: remove incomplete performance tuning settings

These settings are insufficient for a real production site and
only work on Apache.

Given they could interfere with a well configured webserver, let's
remove them until we come up with a more complete solution.
Signed-off-by: Francois Marier <francois@catalyst.net.nz>

htdocs/.htaccess

@@ -19,13 +19,6 @@ php_value post_max_size 50M
     deny from all
 </Files>
 
-# HTTP performance. This stuff tested in apache2 only.
-# Enable mod_expires, mod_headers and mod_deflate!
-
-<IfModule mod_deflate.c>
-    AddOutputFilterByType DEFLATE text/html text/css application/x-javascript
-</IfModule>
-
 <IfModule mod_headers.c>
     Header unset ETag
 </IfModule>

htdocs/artefact/file/js/.htaccess

-<IfModule mod_expires.c>
-    ExpiresActive On
-    ExpiresDefault "access plus 1 week"
-</IfModule>

htdocs/artefact/internal/js/.htaccess

-<IfModule mod_expires.c>
-    ExpiresActive On
-    ExpiresDefault "access plus 1 week"
-</IfModule>

htdocs/js/.htaccess

-<IfModule mod_expires.c>
-    ExpiresActive On
-    ExpiresDefault "access plus 3 days"
-</IfModule>

htdocs/lib/pieforms/static/core/.htaccess

-<IfModule mod_expires.c>
-    ExpiresActive On
-    ExpiresDefault "access plus 1 week"
-</IfModule>

htdocs/theme/.htaccess

-<IfModule mod_expires.c>
-    ExpiresActive On
-    ExpiresDefault "access plus 3 days"
-</IfModule>