[FAB-15104] Remove scripts/bootstrap.sh

Removed scripts/bootstrap.sh file and updated the README.md
with steps to download bootstrap.sh from Fabric repository.

Signed-off-by: Yukihiko <hirayanagi@jp.fujitsu.com>
Change-Id: I50357c702c8b357fedaf8ccd1ec97ef6c4429371

README.md

@@ -9,14 +9,20 @@ intend to use to ensure alignment.
 
 ## Download Binaries and Docker Images
 
-The [`scripts/bootstrap.sh`](https://github.com/hyperledger/fabric-samples/blob/release-1.3/scripts/bootstrap.sh)
+The `scripts/bootstrap.sh` (available in the fabric repository)
 script will preload all of the requisite docker
 images for Hyperledger Fabric and tag them with the 'latest' tag. Optionally,
 specify a version for fabric, fabric-ca and thirdparty images. Default versions
-are 1.4.0, 1.4.0 and 0.4.14 respectively.
+are 1.4.1, 1.4.1 and 0.4.15 respectively.
+
 
 ```bash
-./scripts/bootstrap.sh [version] [ca version] [thirdparty_version]
+# Fetch bootstrap.sh from fabric repository using
+curl -sS https://raw.githubusercontent.com/hyperledger/fabric/master/scripts/bootstrap.sh -o ./scripts/bootstrap.sh
+# Change file mode to executable
+chmod +x ./scripts/bootstrap.sh
+# Download binaries and docker images (bypass fabric-samples repo clone)
+./scripts/bootstrap.sh [version] [ca version] [thirdparty_version] -s
 ```
 
 ### Continuous Integration