By default Rapise will record a script with embedded comments:

//Click on Log In
SeS('Log_In').DoClick();

//Set Text librarian in Username:
SeS('Username_').DoSetText("librarian");

//Set Text librarian in Password:
SeS('Password_').DoSetText("librarian");

//Click on ctl00$MainContent$LoginUser$LoginButton
SeS('ctl00$MainContent$LoginUser$Logi').DoClick();

If you open up the test script settings tab, add the following line to the CommandLine parameters:

-eval:g_recordComments=false;

Now when you record, it will generate just the actual script code with no comments:

SeS('Log_In').DoClick();

SeS('Username_').DoSetText("librarian");

SeS('Password_').DoSetText("librarian");

SeS('ctl00$MainContent$LoginUser$Logi').DoClick();

You may also switch off Generate Comments global option without modifying the test.