Fix stylelint warning in sherlock.scss

app/assets/stylesheets/pages/sherlock.scss

@@ -13,10 +13,8 @@ table .sherlock-code {
 }
 
 .sherlock-line-samples-table {
-  margin-bottom: 0 !important;
-
-  thead tr th,
-  tbody tr td {
+  thead th,
+  tbody td {
     font-size: 13px !important;
     text-align: right;
     padding: 0 10px !important;

app/views/sherlock/file_samples/show.html.haml

@@ -32,7 +32,7 @@
       = @file_sample.file
   .code.file-content.js-syntax-highlight
     .line-numbers
-      %table.sherlock-line-samples-table
+      %table.sherlock-line-samples-table.gl-mb-0
         %thead
           %tr
             %th= t('sherlock.line_capitalized')