Remove extra blank lines to comply with RuboCop guidelines

- Removed unnecessary blank lines detected by `Layout/EmptyLines`.

Author: martencassel

test/test_radcli.rb

@@ -22,7 +22,6 @@
 adconn.set_login_ccache_name("")
 res = adconn.connect
 
-
 # Delete the computer accounts object
 enroll = Adcli::AdEnroll.new(adconn)
 enroll.set_computer_name("server1")
@@ -47,7 +46,6 @@
 enroll.set_computer_name("server1")
 enroll.delete()
 
-
 # Create a computer account object in specific OU
 enroll = Adcli::AdEnroll.new(adconn)
 enroll.set_domain_ou('OU=Computers,OU=Foobar,DC=example,DC=com')