Remove scrollbar styles
Remove scrollbar styles

Fix #270

codeforamerica/somerville-teacher-tool,studentinsights/studentinsights,erose/studentinsights,jhilde/studentinsights,studentinsights/studentinsights,codeforamerica/somerville-teacher-tool,jhilde/studentinsights,studentinsights/studentinsights,codeforamerica/somerville-teacher-tool,codeforamerica/somerville-teacher-tool,jhilde/studentinsights,hunterowens/somerville-teacher-tool,erose/studentinsights,hunterowens/somerville-teacher-tool,erose/studentinsights,studentinsights/studentinsights,hunterowens/somerville-teacher-tool,jhilde/studentinsights,erose/studentinsights