chore: Remove jq from javadoc script (googleapis#8316)

.kokoro/release/publish_javadoc11.sh

@@ -30,15 +30,8 @@ pushd $(dirname "$0")/../../
 # install docuploader package
 python3 -m pip install gcp-docuploader
 
-apt-get update
-# install jq to extract field from json file
-apt-get install -y jq
-
 doclet_name="java-docfx-doclet-1.7.0.jar"
 
-# compile all packages
-#mvn clean install -B -q -DskipTests -Dcheckstyle.skip -Denforcer.skip=true -T 1C
-
 # Retrieve list of modules from aggregator pom
 modules=$(mvn help:evaluate -Dexpression=project.modules | grep '<.*>.*</.*>' | sed -e 's/<.*>\(.*\)<\/.*>/\1/g')
 excluded_modules=('CoverageAggregator' 'google-cloud-gapic-bom')
@@ -48,8 +41,8 @@ do
   # Proceed if module is not excluded
   if [[ ! "${excluded_modules[*]}" =~ $module ]]; then
     pushd $module
-    # Extract Cloud RAD module name
-    NAME=$(jq -r '.distribution_name' .repo-metadata.json | cut -d ':' -f 2)
+    # Extract Cloud RAD module name from `distribution_name` in .repo-metadata.json
+    NAME=$(grep -o '"distribution_name": "[^"]*' .repo-metadata.json | grep -o '[^"]*$' | cut -d ':' -f 2)
     # Extract (current) version from versions.txt and remove `-SNAPSHOT`
     VERSION=$(grep ${NAME}: versions.txt | cut -d: -f3 | sed -e 's/-SNAPSHOT//g')
     echo "Running for ${NAME}-${VERSION}"