hikey: Remove 3.18 kernel prebuilts am: b937f822fe
am: 7f6583d915

Change-Id: I7d640c9aa54a1a3579be0dae96b35ca8c912d08b
diff --git a/Image.gz-dtb-3.18 b/Image.gz-dtb-3.18
deleted file mode 100644
index 3a54d43..0000000
--- a/Image.gz-dtb-3.18
+++ /dev/null
Binary files differ
diff --git a/hi6220-hikey.dtb-3.18 b/hi6220-hikey.dtb-3.18
deleted file mode 100644
index 688cbf1..0000000
--- a/hi6220-hikey.dtb-3.18
+++ /dev/null
Binary files differ