Handled uninstalled scenarios

Author: jainakanksha-msft

pkg/blobfuse-proxy/install-proxy.sh

@@ -74,9 +74,14 @@ then
       pkg_list="${pkg_list} blobfuse2"
     else
       if echo "${BLOBFUSE2_VERSION}" | grep -q "preview"; then
-        $HOST_CMD apt remove -y blobfuse2
+        if dpkg -l | grep -q blobfuse2; then
+          $HOST_CMD apt-get remove -y blobfuse2
+        fi
         pkg_list="${pkg_list} blobfuse2-preview=${BLOBFUSE2_VERSION}"
       else
+        if dpkg -l | grep -q blobfuse2-preview; then
+          $HOST_CMD apt-get remove -y blobfuse2-preview
+        fi
         pkg_list="${pkg_list} blobfuse2=${BLOBFUSE2_VERSION}"
       fi
     fi