Better fix for "Stop premature scroll bar on long build labels" (#3576) (#3601)

* Update hudson-behavior.js

* Remove previous workaround for scroll bars on build labels

war/src/main/webapp/css/style.css

@@ -1067,7 +1067,6 @@ table.parameters > tbody:hover {
 }
 
 .build-row.multi-line .build-row-cell .pane.build-name.block {
-  padding-right: 20px;
   width: 100%;
 }
 .build-row-cell .pane.build-controls.block {

war/src/main/webapp/scripts/hudson-behavior.js

@@ -1845,7 +1845,6 @@ function updateBuildHistory(ajaxUrl,nBuild) {
                     var wrap = blockWrap(buildDetails, buildControls);
                     indentMultiline(wrap);
                     Element.addClassName(wrap, "build-details-controls");
-                    $(displayName).setStyle({width: '100%'});
                     detailsOverflowParams = getElementOverflowParams(buildDetails); // recalculate
                     expandLeftWithRight(detailsOverflowParams, controlsOverflowParams);
                     setBuildControlWidths();