Remove unnecessary scripts after repo split (#1372)

Signed-off-by: Joshua Li <[email protected]>
(cherry picked from commit a659678)

build.gradle

@@ -630,11 +630,5 @@ task updateVersion {
         println "Setting version to ${newVersion}."
          // String tokenization to support -SNAPSHOT
         ant.replaceregexp(file:'build.gradle', match: '"opensearch.version", "\\d.*"', replace: '"opensearch.version", "' + newVersion.tokenize('-')[0] + '-SNAPSHOT"', flags:'g', byline:true)
-        ant.replaceregexp(file:'../.github/workflows/dashboards-observability-test-and-build-workflow.yml', match:'OPENSEARCH_PLUGIN_VERSION: \\d+.\\d+.\\d+.\\d+', replace:'OPENSEARCH_PLUGIN_VERSION: ' + newVersion.tokenize('-')[0] + '.0', flags:'g', byline:true)
-        // Match key version in JSON files.
-        ant.replaceregexp(file:'../dashboards-observability/opensearch_dashboards.json', match:'"version": "\\d+.\\d+.\\d+.\\d+', replace:'"version": ' + '"' + newVersion.tokenize('-')[0] + '.0', flags:'g', byline:true)
-        ant.replaceregexp(file:'../dashboards-observability/package.json', match:'"version": "\\d+.\\d+.\\d+.\\d+', replace:'"version": ' + '"' + newVersion.tokenize('-')[0] + '.0', flags:'g', byline:true)
-        // Match key opensearchDashboardsVersion in JSON files.
-        ant.replaceregexp(file:'../dashboards-observability/opensearch_dashboards.json', match:'"opensearchDashboardsVersion": "\\d+.\\d+.\\d+', replace:'"opensearchDashboardsVersion": ' + '"' + newVersion.tokenize('-')[0], flags:'g', byline:true)
     }
 }