Simplify publish-rhel.sh

The script calls functions in order, most steps only proceed if a certain condition is met. The subsequent step then immediately checks the same condition before proceeding which is redundant.

This is an optimization, it's not a problem.

Example:
`wait_for_container_scan`:
https://github.com/hazelcast/hazelcast-docker/blob/6729095dbdf6d8ba17f5eaf9b6d5dfbf6f321b99/.github/scripts/publish-rhel.sh#L68-L69
Immediately followed by `publish_the_image`:
https://github.com/hazelcast/hazelcast-docker/blob/6729095dbdf6d8ba17f5eaf9b6d5dfbf6f321b99/.github/scripts/publish-rhel.sh#L103-L106

`wait_for_container_publish`:
https://github.com/hazelcast/hazelcast-docker/blob/6729095dbdf6d8ba17f5eaf9b6d5dfbf6f321b99/.github/scripts/publish-rhel.sh#L138-L146
Immediately followed by `sync_tags`:
https://github.com/hazelcast/hazelcast-docker/blob/6729095dbdf6d8ba17f5eaf9b6d5dfbf6f321b99/.github/scripts/publish-rhel.sh#L183-L189

Author: JackPGreen

.github/scripts/publish-rhel.sh

@@ -36,7 +36,7 @@ get_image()
 }
 
 wait_for_container_scan()
-{    
+{
     local IMAGE
     local IS_PUBLISHED
 
@@ -51,7 +51,6 @@ wait_for_container_scan()
     local NOF_RETRIES=$(( TIMEOUT_IN_MINS / 2 ))
     # Wait until the image is scanned
     for i in $(seq 1 "${NOF_RETRIES}"); do
-        local IMAGE
         local SCAN_STATUS
         local IMAGE_CERTIFIED
 
@@ -87,29 +86,6 @@ publish_the_image()
 {
     echo "Starting publishing the image for ${IMAGE_ID}"
 
-    local IMAGE
-    local IMAGE_EXISTS
-
-    IMAGE=$(get_image not_published)
-    IMAGE_EXISTS=$(echo "${IMAGE}" | jq -r '.total')
-
-    if [[ ${IMAGE_EXISTS} == "1" ]]; then
-        local SCAN_STATUS
-        local IMAGE_CERTIFIED
-
-        SCAN_STATUS=$(echo "${IMAGE}" | jq -r '.data[0].container_grades.status')
-        IMAGE_CERTIFIED=$(echo "${IMAGE}" | jq -r '.data[0].certified')
-
-        if [[ ${SCAN_STATUS} != "completed" ||  "${IMAGE_CERTIFIED}" != "true" ]]; then
-            echoerr "Image you are trying to publish did not pass the certification test, its status is \"${SCAN_STATUS}\" and certified is \"${IMAGE_CERTIFIED}\""
-            return 1
-        fi
-    else
-        echoerr "Image you are trying to publish does not exist."
-        echoerr "${IMAGE}"
-        return 1
-    fi
-
     echo "Publishing the image ${IMAGE_ID}..."
     # https://catalog.redhat.com/api/containers/docs/endpoints/RESTPostImageRequestByCertProjectId.html
     RESPONSE=$( \
@@ -175,19 +151,6 @@ wait_for_container_publish()
 
 sync_tags()
 {
-    echo "Starting sync tags for ${IMAGE_ID}"
-
-    local IMAGE
-    local IMAGE_EXISTS
-
-    IMAGE=$(get_image published)
-    IMAGE_EXISTS=$(echo "${IMAGE}" | jq -r '.total')
-
-    if [[ ${IMAGE_EXISTS} == "0" ]]; then
-        echo "Image you are trying to sync does not exist."
-        return 1
-    fi
-
     echo "Syncing tags of the image ${IMAGE_ID}..."
     # https://catalog.redhat.com/api/containers/docs/endpoints/RESTPostImageRequestByCertProjectId.html
     RESPONSE=$( \