Remove some TODOs (#6488)

* Remove stale TODOs

* Ban TODO markers from markdown

* Scrub all TODOs from ci/ and book/

net/remote/remote-node.sh

@@ -377,9 +377,9 @@ EOF
     )
 
     if [[ $airdropsEnabled != true ]]; then
-      echo "TODO: archivers not supported without airdrops"
-      # TODO: need to provide the `--identity` argument to an existing system
-      #       account with lamports in it
+      # If this ever becomes a problem, we need to provide the `--identity`
+      # argument to an existing system account with lamports in it
+      echo "Error: archivers not supported without airdrops"
       exit 1
     fi
 

net/remote/remote-sanity.sh

@@ -66,7 +66,6 @@ local|tar|skip)
   solana_cli=solana
   solana_gossip=solana-gossip
   solana_install=solana-install
-  solana_keygen=solana-keygen
   ;;
 *)
   echo "Unknown deployment method: $deployMethod"
@@ -85,11 +84,8 @@ fi
 
 echo "+++ $sanityTargetIp: validators"
 (
-  # Ensure solana-cli has a keypair even though it doesn't really need one...
-  # TODO: Remove when https://github.com/solana-labs/solana/issues/6375 is fixed
-  $solana_keygen new --force -o temp-id.json
   set -x
-  $solana_cli --keypair temp-id.json --url http://"$sanityTargetIp":8899 show-validators
+  $solana_cli --url http://"$sanityTargetIp":8899 show-validators
 )
 
 echo "+++ $sanityTargetIp: node count ($numSanityNodes expected)"