Revert "Issue #6145: Set a fixed body-height" for global side effects

This reverts commit 990c678c.

Changelog.md

@@ -11,7 +11,6 @@
 * Fix wrong closing a-tag [#6111](https://github.com/diaspora/diaspora/pull/6111)
 * Fix mobile more-button wording when there are less than 15 posts [#6118](https://github.com/diaspora/diaspora/pull/6118)
 * Fix reappearing flash boxes during sign-in [#6146](https://github.com/diaspora/diaspora/pull/6146)
-* Fix the kittens posioin on 404 pages [#6169](https://github.com/diaspora/diaspora/pull/6169)
 
 ## Features
 * Add configuration options for some debug logs [#6090](https://github.com/diaspora/diaspora/pull/6090)

app/assets/stylesheets/new_styles/_base.scss

@@ -2,7 +2,6 @@ html,
 body {
   /* hack to ensure fixed elements at height: 100%; are in relation to the window */
   max-height : 100%;
-  height: 100%;
 }
 
 body {