Fix Docstrings for test_server_basic_ops.py

In commit I80d785bb5b325ccfac3c5cfd9d076718cf587e80,
Pause/unpause & Suspend/resume tests have been moved from this
test class but docstring was not updated.

Closes-Bug: #1353814

Change-Id: If890e459a9621e74df55d60d8befe53c471aa83f
diff --git a/tempest/scenario/test_server_basic_ops.py b/tempest/scenario/test_server_basic_ops.py
index b38b1a3..eb636f7 100644
--- a/tempest/scenario/test_server_basic_ops.py
+++ b/tempest/scenario/test_server_basic_ops.py
@@ -35,8 +35,7 @@
      * Create a security group to control network access in instance
      * Add simple permissive rules to the security group
      * Launch an instance
-     * Pause/unpause the instance
-     * Suspend/resume the instance
+     * Perform ssh to instance
      * Terminate the instance
     """