Revert^6 "Hash-based dex cache type array."

Fixed ImageWriter to write class table also if it contains
only boot class loader classes. Added a regression test and
added extra checks for debug-build to verify that dex cache
types from app image are also in the class table. Removed
some unnecessary debug output.

Test: 158-app-image-class-table
Bug: 34839984
Bug: 30627598
Bug: 34659969

This reverts commit 0b66d6174bf1f6023f9d36dda8538490b79c2e9f.

Change-Id: I6a747904940c6ebc297f4946feef99dc0adf930c
diff --git a/test/158-app-image-class-table/expected.txt b/test/158-app-image-class-table/expected.txt
new file mode 100644
index 0000000..6a5618e
--- /dev/null
+++ b/test/158-app-image-class-table/expected.txt
@@ -0,0 +1 @@
+JNI_OnLoad called