Revert "Add bazel into the required package list."

This reverts commit 566de874e61dd2b8381c89ee284c297d1c77213a.

Reason for revert: Can't install bazel like this.

Change-Id: I93740f65c0dc4e17154f2df3bc15cc617af814ca

install-prereqs.sh

diff --git a/install-prereqs.sh b/install-prereqs.sh
index 60dbb6e..99986d4 100755
--- a/install-prereqs.sh
+++ b/install-prereqs.sh
@@ -19,7 +19,6 @@
 
 APT_PACKAGES=(
     asciidoctor
-    bazel
     bison
     build-essential
     ccache