Add feature to remove parser. (#1476)

Remove the parser so we can save space if we are
only interested in running snapshots.

Removing the parser enables the snapshot execution.

JerryScript-DCO-1.0-Signed-off-by: Sergio Martinez sergio.martinez.rodriguez@intel.com

jerry-core/parser/js/js-parser-expr.c

@@ -15,6 +15,8 @@
 
 #include "js-parser-internal.h"
 
+#ifndef JERRY_DISABLE_PARSER
+
 /** \addtogroup parser Parser
  * @{
  *
@@ -1528,3 +1530,5 @@ parser_parse_expression (parser_context_t *context_p, /**< context */
  * @}
  * @}
  */
+
+#endif /* !JERRY_DISABLE_PARSER */