Delete Dockerfile.ubuntu (#12888)

The file was solely for Nuphar.

tools/ci_build/github/linux/docker/Dockerfile.ubuntu

@@ -1,14 +0,0 @@
-FROM ubuntu:20.04
-
-ARG PYTHON_VERSION=3.8
-
-ADD scripts /tmp/scripts
-RUN /tmp/scripts/install_ubuntu.sh -p $PYTHON_VERSION && /tmp/scripts/install_os_deps.sh && /tmp/scripts/install_python_deps.sh -p $PYTHON_VERSION && rm -rf /tmp/scripts
-
-WORKDIR /root
-
-ARG BUILD_UID=1000
-ARG BUILD_USER=onnxruntimedev
-RUN adduser --gecos 'onnxruntime Build User' --disabled-password $BUILD_USER --uid $BUILD_UID
-WORKDIR /home/$BUILD_USER
-USER $BUILD_USER

tools/ci_build/github/linux/docker/scripts/install_ubuntu.sh

@@ -59,35 +59,14 @@ if [ $DEVICE_TYPE = "Normal" ]; then
     PACKAGE_LIST="$PACKAGE_LIST libedit-dev libxml2-dev python3-packaging"
 fi
 
-if [ "$OS_VERSION" = "18.04" ]; then
-    PACKAGE_LIST="$PACKAGE_LIST libicu60"
-else
-    PACKAGE_LIST="$PACKAGE_LIST libicu66"
-fi
+PACKAGE_LIST="$PACKAGE_LIST libicu66"
 
 apt-get install -y --no-install-recommends $PACKAGE_LIST
 
 locale-gen en_US.UTF-8
 update-locale LANG=en_US.UTF-8
 
-if [ "$OS_VERSION" = "16.04" ]; then
-    exit 1
-elif [ "$OS_VERSION" = "18.04" ]; then
-    if [ "$PYTHON_VER" != "3.6" ]; then
-	    add-apt-repository -y ppa:deadsnakes/ppa
-        apt-get update
-        apt-get install -y --no-install-recommends \
-                python${PYTHON_VER} \
-                python${PYTHON_VER}-dev
-        update-alternatives --install /usr/bin/python3 python3 /usr/bin/python${PYTHON_VER} 1
-        update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
-        update-alternatives --set python3 /usr/bin/python${PYTHON_VER}
-        #TODO: the old one(/usr/bin/pip3) should be uninstalled first. Because the one will be
-        #put at /usr/local/. Then there will be two pips.
-        /usr/bin/python${PYTHON_VER} -m pip install --upgrade --force-reinstall pip==19.0.3
-    fi
-
-else # ubuntu20.04
+if [ "$OS_VERSION" = "20.04" ]; then
     if [ "$PYTHON_VER" != "3.8" ]; then
 	    add-apt-repository -y ppa:deadsnakes/ppa
         apt-get update
@@ -101,17 +80,10 @@ else # ubuntu20.04
         #put at /usr/local/. Then there will be two pips.
         /usr/bin/python${PYTHON_VER} -m pip install --upgrade --force-reinstall pip==19.0.3
     fi
+else
+    exit 1   
 fi
 
 rm -rf /var/lib/apt/lists/*
 
-if [ "$SYS_LONG_BIT" = "64" ]; then
-    if [ "$DEVICE_TYPE" = "Normal" ]; then
-	    if [ "$OS_VERSION" = "20.04" ]; then
-	        #llvm 9.0 doesn't have a release for 20.04, but the binaries for 18.04 should work well.
-            OS_VERSION="18.04"
-	    fi
-        aria2c -q -d /tmp -o llvm.tar.xz http://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-${OS_VERSION}.tar.xz
-	    tar --strip 1 -Jxf /tmp/llvm.tar.xz -C /usr
-    fi
-fi
+

tools/ci_build/github/linux/run_dockerbuild.sh

@@ -102,20 +102,16 @@ elif [[ $BUILD_DEVICE = "tensorrt"* ]]; then
         $GET_DOCKER_IMAGE_CMD --repository "onnxruntime-$IMAGE" \
             --docker-build-args="--build-arg BUILD_USER=onnxruntimedev --build-arg BUILD_UID=$(id -u) --build-arg PYTHON_VERSION=${PYTHON_VER}" \
             --dockerfile $DOCKER_FILE --context .
-else
+elif [[ $BUILD_DEVICE = "openvino"* ]]; then
         BUILD_ARGS="--build-arg BUILD_USER=onnxruntimedev --build-arg BUILD_UID=$(id -u) --build-arg PYTHON_VERSION=3.8"
-
-        if [ $BUILD_DEVICE = "openvino" ]; then
-           IMAGE="$BUILD_OS-openvino"
-           DOCKER_FILE=Dockerfile.ubuntu_openvino
-           BUILD_ARGS+=" --build-arg OPENVINO_VERSION=${OPENVINO_VERSION}"
-        else
-           IMAGE="$BUILD_OS"
-           DOCKER_FILE=Dockerfile.ubuntu
-        fi
+        IMAGE="$BUILD_OS-openvino"
+        DOCKER_FILE=Dockerfile.ubuntu_openvino
+        BUILD_ARGS+=" --build-arg OPENVINO_VERSION=${OPENVINO_VERSION}"
         $GET_DOCKER_IMAGE_CMD --repository "onnxruntime-$IMAGE" \
                 --docker-build-args="${BUILD_ARGS}" \
                 --dockerfile $DOCKER_FILE --context .
+else
+  exit 1
 fi
 
 if [[ $NEED_BUILD_SHARED_LIB = true ]]; then