Remove wrong paramter COMPUTE_API_VERSION

Since:
 - novaclient doesn't require specify the *compute api* version
  (default is 2.latest now)
 - novaclient doesn't use COMPUTE_API_VERSION, since it's wrong name(
   OS_COMPUTE_API_VERSION is a correct name)

we can remove COMPUTE_API_VERSION and NOVA_VERSION vars

Change-Id: I47856863e9403870b8d60c778b97d3de1a212ae1

Author: andreykurilin

exercises/client-args.sh

@@ -41,7 +41,6 @@ unset NOVA_PROJECT_ID
 unset NOVA_REGION_NAME
 unset NOVA_URL
 unset NOVA_USERNAME
-unset NOVA_VERSION
 
 # Save the known variables for later
 export x_TENANT_NAME=$OS_TENANT_NAME

exercises/client-env.sh

@@ -41,7 +41,6 @@ unset NOVA_PROJECT_ID
 unset NOVA_REGION_NAME
 unset NOVA_URL
 unset NOVA_USERNAME
-unset NOVA_VERSION
 
 for i in OS_TENANT_NAME OS_USERNAME OS_PASSWORD OS_AUTH_URL; do
     is_set $i
@@ -101,9 +100,6 @@ if [[ "$ENABLED_SERVICES" =~ "n-api" ]]; then
             STATUS_EC2="Failed"
             RETURN=1
         fi
-
-        # Clean up side effects
-        unset NOVA_VERSION
     fi
 fi
 

openrc

@@ -95,12 +95,6 @@ if [[ ! -v OS_CACERT ]] ; then
     fi
 fi
 
-# Currently novaclient needs you to specify the *compute api* version.  This
-# needs to match the config of your catalog returned by Keystone.
-export NOVA_VERSION=${NOVA_VERSION:-1.1}
-# In the future this will change names:
-export COMPUTE_API_VERSION=${COMPUTE_API_VERSION:-$NOVA_VERSION}
-
 # Currently cinderclient needs you to specify the *volume api* version. This
 # needs to match the config of your catalog returned by Keystone.
 export CINDER_VERSION=${CINDER_VERSION:-2}