Remove /target from .gitignore

This folder is created by Maven, and the Maven build
was removed.

Change-Id: Ib40e6defb1354b9331cc6b1a4fe9747fca7fecd2
diff --git a/.gitignore b/.gitignore
index 80d6257..499784b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-/target
 /.classpath
 /.project
 /.settings/org.maven.ide.eclipse.prefs