[FAB-9301] Remove TODO for KeyStore in core.yaml

The TODO for KeyStore to ensure it is read with
fabric/core/config.GetPath() has done already, and
should be removed. A TODO here may indicate to users
that relative path is still not supported yet.

Change-Id: Ib85c1cb484145d88e207d0673f118e82c4c15731
Signed-off-by: Zhenguo Niu <Niu.ZGlinux@gmail.com>

Author: niuzhenguo

sampleconfig/core.yaml

@@ -312,7 +312,6 @@ peer:
             # Location of Key Store
             FileKeyStore:
                 # If "", defaults to 'mspConfigPath'/keystore
-                # TODO: Ensure this is read with fabric/core/config.GetPath() once ready
                 KeyStore:
 
     # Path on the file system where peer will find MSP local configurations