Use JSON grammar/config from TM4E

Reduce duplication/maintenance efforts and potential conflicts.

Author: sebthom

org.eclipse.wildwebdeveloper/build.properties

@@ -7,7 +7,6 @@ bin.includes = META-INF/,\
                node_modules/,\
                language-configurations/,\
                grammars/,\
-               snippets/,\
                icons/,\
                schema/,\
                js-debug/,\