Revert "Prevent image outputs from being wider than their container."

IPython/html/static/notebook/less/outputarea.less

@@ -131,13 +131,6 @@ div.output_png {
 div.output_jpeg {
 }
 
-// Prevent the image outputs from being wider than the page.
-div.output_png div.ui-wrapper, 
-div.output_svg div.ui-wrapper, 
-div.output_jpeg div.ui-wrapper {
-    max-width: 100%
-}
-
 /* Empty output_javascript divs should have no height */
 div.output_javascript:empty {
     padding: 0;

IPython/html/static/style/ipython.min.css

@@ -897,11 +897,6 @@ div.output_stderr {
 div.output_latex {
   text-align: left;
 }
-div.output_png div.ui-wrapper,
-div.output_svg div.ui-wrapper,
-div.output_jpeg div.ui-wrapper {
-  max-width: 100%;
-}
 /* Empty output_javascript divs should have no height */
 div.output_javascript:empty {
   padding: 0;

IPython/html/static/style/style.min.css

@@ -9673,11 +9673,6 @@ div.output_stderr {
 div.output_latex {
   text-align: left;
 }
-div.output_png div.ui-wrapper,
-div.output_svg div.ui-wrapper,
-div.output_jpeg div.ui-wrapper {
-  max-width: 100%;
-}
 /* Empty output_javascript divs should have no height */
 div.output_javascript:empty {
   padding: 0;