Update FeaturesResources.resx

fixed wrong merge

src/Features/Core/Portable/FeaturesResources.resx

@@ -1156,6 +1156,7 @@ This version used in: {2}</value>
   </data>
   <data name="Remove_unused_variable" xml:space="preserve">
     <value>Remove unused variable</value>
+  </data>
   <data name="Convert_to_binary" xml:space="preserve">
     <value>Convert to binary</value>
   </data>
@@ -1177,4 +1178,4 @@ This version used in: {2}</value>
   <data name="Remove_separators" xml:space="preserve">
     <value>Remove separators</value>
   </data>
-</root>
\ No newline at end of file
+</root>