Revert "execute_ssh_command convert parms to int"

This reverts commit 9bc60f67d22370d0aacaebfccd7fc46f8ad5e8e1.

Change-Id: I28471f1150d66f686c7639d652535eebc7c08bad
diff --git a/lib/gen_robot_ssh.py b/lib/gen_robot_ssh.py
index 9de7a34..7891059 100755
--- a/lib/gen_robot_ssh.py
+++ b/lib/gen_robot_ssh.py
@@ -219,11 +219,6 @@
 
     gp.lprint_executing()
 
-    # Convert to int.
-    print_out = int(print_out)
-    print_err = int(print_err)
-    ignore_err = int(ignore_err)
-    fork = int(fork)
     # Obtain default values.
     quiet = int(gp.get_var_value(quiet, 0))
     test_mode = int(gp.get_var_value(test_mode, 0))