hikey: booloader: Cleanup unused bl1.bin

The bl1.bin is an intermediate build object that is wrapped up
in the l-loader.bin so, it should not be included here.

Remove it.

Change-Id: I50bf70260e8cffdbd5e0ad0ab231512591d6215b
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/installer/bl1.bin b/installer/bl1.bin
deleted file mode 100644
index c7a1cf6..0000000
--- a/installer/bl1.bin
+++ /dev/null
Binary files differ