Remove sdkman from dotnet6 image

Signed-off-by: Prabhu Subramanian <[email protected]>

sle/Dockerfile.dotnet

@@ -1,19 +1,15 @@
 FROM registry.suse.com/bci/dotnet-sdk:6.0
 
-ARG JAVA_VERSION=22.0.2-tem
-
 ENV DOTNET_GENERATE_ASPNET_CERTIFICATE=false \
     DOTNET_NOLOGO=true \
     DOTNET_USE_POLLING_FILE_WATCHER=true \
     NUGET_XMLDOC_MODE=skip \
     DOTNET_RUNNING_IN_CONTAINER=true \
-    DOTNET_CLI_TELEMETRY_OPTOUT=1 \
-    JAVA_VERSION=$JAVA_VERSION \
-    JAVA_HOME="/opt/java/${JAVA_VERSION}"
-ENV PATH=${PATH}:${JAVA_HOME}/bin:/usr/local/bin:
+    DOTNET_CLI_TELEMETRY_OPTOUT=1
+ENV PATH=${PATH}:/usr/local/bin:
 
-RUN zypper refresh && zypper --non-interactive update && zypper --non-interactive install -l --no-recommends git-core nodejs20 npm20 \
-        python311 python311-pip wget zip unzip make gawk \
+RUN zypper --non-interactive install -l --no-recommends git-core nodejs20 npm20 \
+        python311 python311-pip wget zip unzip make gawk java-21-openjdk-devel \
     && rpm -Uvh https://packages.microsoft.com/config/sles/15/packages-microsoft-prod.rpm \
     && zypper --non-interactive install -l --no-recommends dotnet-sdk-3.1 \
     && zypper --non-interactive addrepo -G -f -K https://download.opensuse.org/repositories/Mono/SLE_15_SP1/Mono.repo \
@@ -23,13 +19,6 @@ RUN zypper refresh && zypper --non-interactive update && zypper --non-interactiv
     && chmod +x /usr/bin/nuget \
     && rm -rf /usr/lib/mono/nuget \
     && dotnet --list-sdks \
-    && curl -s "https://get.sdkman.io" | bash \
-    && echo -e "sdkman_auto_answer=true\nsdkman_selfupdate_feature=false\nsdkman_auto_env=true\nsdkman_curl_connect_timeout=60\nsdkman_curl_max_time=0" >> $HOME/.sdkman/etc/config \
-    && source "$HOME/.sdkman/bin/sdkman-init.sh" \
-    && sdk install java $JAVA_VERSION \
-    && sdk offline enable \
-    && mv /root/.sdkman/candidates/* /opt/ \
-    && rm -rf /root/.sdkman \
     && zypper clean -a
 COPY nuget /usr/lib/mono/nuget
 CMD /bin/bash