Remove check_version in common_functions.sh

- remove check_version function
- remove set_version function
resolves : #4949

Signed-off-by: Anna Babu Palathingal <anna.bp@ibm.com>

external/build_image.sh

@@ -42,7 +42,6 @@ check_external_custom=$9
 if [[ "${check_external_custom}" == "0" ]]; then
 	set_test $1
 fi
-set_version $2
 set_vm $3
 set_os $4
 set_package $5

external/common_functions.sh

@@ -32,30 +32,6 @@ supported_builds="full"
 # Supported tests
 supported_tests="external_custom camel criu-functional criu-portable-checkpoint criu-portable-restore criu-ubi-portable-checkpoint criu-ubi-portable-restore derby elasticsearch jacoco jenkins functional-test kafka lucene-solr openliberty-mp-tck payara-mp-tck quarkus quarkus_quickstarts scala system-test tomcat tomee wildfly wycheproof netty spring zookeeper"
 
-function check_version() {
-    version=$1
-
-    for current_version in ${supported_versions}
-    do
-        if [[ "${version}" == "${current_version}" ]]; then
-            return 1
-        fi
-    done
-
-    return 0
-}
-
-# Set a valid version
-function set_version() {
-    version=$1
-
-    if (check_version ${version}); then
-        echo "ERROR: Invalid Version: ${version}"
-        echo "Usage: $0 [${supported_versions}]"
-        exit 1
-    fi
-}
-
 function check_os() {
     os=$1