simplify offline signing section (move parts describing caveats about…

… write-buffer authority into separate PR)

docs/src/cli/deploy-a-program.md

@@ -330,11 +330,6 @@ solana program write-buffer <PROGRAM_FILEPATH>
 solana program set-buffer-authority <BUFFER_PUBKEY> --new-buffer-authority <OFFLINE_SIGNER_PUBKEY>
 ```
 
-- note, above we have to issue a separate `solana program set-buffer-authority` command (using online machine) to 
-  change authority to be that of offline signer because we don't have access to offline signer private key to sign 
-  up as buffer authority when running `solana program write-buffer` command using online machine (offline signer 
-  private key is stored on offline machine), and `solana program set-buffer-authority` doesn't impose that requirement.
-
 (3) (optional) You may verify that the uploaded program matches the built binary. See 
 [dumping a program to a file](deploy-a-program.md#dumping-a-program-to-a-file) for more information and details.