Remove highlighting of comments inside of define directive.

It fixes "Makefile syntax highlighting partially breaks when a # is in a string #9".

Author: fadeevab

Syntaxes/Makefile.plist

@@ -198,10 +198,6 @@
 							<key>include</key>
 							<string>#variables</string>
 						</dict>
-						<dict>
-							<key>include</key>
-							<string>#comment</string>
-						</dict>
 						<dict>
 							<key>include</key>
 							<string>#directives</string>