Remove Gender enum:

The gender enum was made to be used with the removed
	Pilgrim class. The previous class and simulation vision
	has changed to be more targeted toward Vehicle flow and
	ignore dead-weight information like Pilgrims.

	Priority enum is still avialable to be used with campaigns
	to give preset priority for expermintation.

Signed-off-by: HeshamTB <hishaminv@gmail.com>

src/Gender.java

@@ -1,4 +0,0 @@
-public enum Gender {
-    MALE,
-    FEMALE
-}