Remove old Jack that are not longer used

Change-Id: I4f830b31d8379f913692d379dc4cf392c282ffeb
diff --git a/tools/jacks/jack--1.1.PRE_ALPHA.jar b/tools/jacks/jack--1.1.PRE_ALPHA.jar
deleted file mode 100644
index 4ffef51..0000000
--- a/tools/jacks/jack--1.1.PRE_ALPHA.jar
+++ /dev/null
Binary files differ
diff --git a/tools/jacks/jack--1.2.PRE_ALPHA.jar b/tools/jacks/jack--1.2.PRE_ALPHA.jar
deleted file mode 100644
index 462e8e5..0000000
--- a/tools/jacks/jack--1.2.PRE_ALPHA.jar
+++ /dev/null
Binary files differ
diff --git a/tools/jacks/jack--1.3.PRE_ALPHA.jar b/tools/jacks/jack--1.3.PRE_ALPHA.jar
deleted file mode 100644
index bbf252b..0000000
--- a/tools/jacks/jack--1.3.PRE_ALPHA.jar
+++ /dev/null
Binary files differ
diff --git a/tools/jacks/jack-3.7.ALPHA.jar b/tools/jacks/jack-3.7.ALPHA.jar
deleted file mode 100644
index 539dbe5..0000000
--- a/tools/jacks/jack-3.7.ALPHA.jar
+++ /dev/null
Binary files differ