go install is redundant with go get -u

INSTALL/README.md

@@ -19,12 +19,10 @@ Don't use `apt-get install golang`, it's still on an old version.
 
 WARNING: THIS STEP WILL GIVE CONTROL OF THE CURRENT USER TO THE DEV TEAM.
 
-    go get -u github.com/tendermint/tendermint/cmd/barak # get+update
-    go install github.com/tendermint/tendermint/cmd/barak # install
+    go get -u github.com/tendermint/tendermint/cmd/barak
     nohup barak -options-file="$GOPATH/src/github.com/tendermint/tendermint/cmd/barak/seed0" &
 
 ### Install/Update Tendermint
 
-    go get -u github.com/tendermint/tendermint/cmd/tendermint  # get+update
-    go install github.com/tendermint/tendermint/cmd/tendermint # install
+    go get -u github.com/tendermint/tendermint/cmd/tendermint
     tendermint node