fix(animate): remove trailing s

Author: mgcrea

src/ngAnimate/animate.js

@@ -1141,7 +1141,7 @@ angular.module('ngAnimate', ['ng'])
           var propertyStyle = timings.transitionPropertyStyle;
           if(propertyStyle.indexOf('all') == -1) {
             style += CSS_PREFIX + 'transition-property: ' + propertyStyle + ';';
-            style += CSS_PREFIX + 'transition-duration: ' + timings.transitionDurationStyle + 's;';
+            style += CSS_PREFIX + 'transition-duration: ' + timings.transitionDurationStyle + ';';
             appliedStyles.push(CSS_PREFIX + 'transition-property');
             appliedStyles.push(CSS_PREFIX + 'transition-duration');
           }

test/ngAnimate/animateSpec.js

@@ -1126,6 +1126,7 @@ describe("ngAnimate", function() {
             $rootScope.$digest();
             $timeout.flush();
 
+            expect(elements[0].attr('style')).toMatch(/transition-duration: 1\d*s,\s*3\d*s;/);
             expect(elements[0].attr('style')).not.toContain('transition-delay');
             expect(elements[1].attr('style')).toMatch(/transition-delay: 2\.1\d*s,\s*4\.1\d*s/);
             expect(elements[2].attr('style')).toMatch(/transition-delay: 2\.2\d*s,\s*4\.2\d*s/);