diff --git a/blocks/html/styles.css b/blocks/html/styles.css
deleted file mode 100644
index de90b14227a..00000000000
--- a/blocks/html/styles.css
+++ /dev/null
@@ -1,2 +0,0 @@
-.block.block_html .content {padding:0;}
-.block.block_html .content .no-overflow {padding:4px;}
\ No newline at end of file
diff --git a/theme/bootstrapbase/config.php b/theme/bootstrapbase/config.php
index 35cfb4745e2..272b4048176 100644
--- a/theme/bootstrapbase/config.php
+++ b/theme/bootstrapbase/config.php
@@ -38,12 +38,6 @@ $THEME->supportscssoptimisation = false;
 
 $THEME->editor_sheets = array('editor');
 
-$THEME->plugins_exclude_sheets = array(
-    'block' => array(
-        'html'
-    ),
-);
-
 $THEME->rendererfactory = 'theme_overridden_renderer_factory';
 
 $THEME->layouts = array(
diff --git a/theme/clean/config.php b/theme/clean/config.php
index 1149e01197c..5d435eb613b 100644
--- a/theme/clean/config.php
+++ b/theme/clean/config.php
@@ -44,12 +44,6 @@ $THEME->yuicssmodules = array();
 
 $THEME->editor_sheets = array();
 
-$THEME->plugins_exclude_sheets = array(
-    'block' => array(
-        'html',
-    ),
-);
-
 $THEME->rendererfactory = 'theme_overridden_renderer_factory';
 $THEME->csspostprocess = 'theme_clean_process_css';