Remove notes from package.sh

Full details will now be in CircleCI configs

scripts/package.sh

@@ -6,22 +6,6 @@
 #
 #   curl https://api.github.com/repos/rqlite/rqlite/releases
 #
-# To install musl tools run:
-#
-#     sudo apt-get -y install musl-dev musl-tools
-#
-# To install other cross-compilation tools run:
-#
-#     sudo apt-get -y install gcc gcc-arm-linux-gnueabi
-#     sudo apt-get -y install gcc gcc-aarch64-linux-gnu
-#     sudo apt-get -y install gcc-mips-linux-gnu
-#	  sudo apt-get -y install gcc-mipsel-linux-gnu
-#	  sudo apt-get -y install gcc-mips64-linux-gnuabi64
-#	  sudo apt-get -y install gcc-mips64el-linux-gnuabi64
-#	  sudo apt-get -y install gcc-powerpc64-linux-gnu
-#	  sudo apt-get -y install gcc-powerpc64le-linux-gnu
-#	  sudo apt-get -y install gcc-riscv64-linux-gnu
-
 
 REPO_URL="https://github.com/rqlite/rqlite"