removed unnecessary files

vizapp/Dockerfile

-FROM git.biohpc.swmed.edu:5050/astrocyte/container/r:3.6.0
-
-# Install R libraries and list the installed
-RUN R -e "require(remotes); install_version('RcppEigen', version = '0.3.3.9.1', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('mvtnorm', version = '1.0-8', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('pbkrtest', version = '0.4-7', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('car', version = '3.0-2', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('ggpubr', version = '0.2', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('survival', version = '2.44-1.1', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "require(remotes); install_version('survminer', version = '0.4.4', upgrade = 'never', repos='https://cloud.r-project.org')"
-RUN R -e "install.packages(c('lazyeval', 'shiny', 'shinyjs', 'showtext'), repos='https://cloud.r-project.org')"
-RUN R -e "as.data.frame(installed.packages()[,c(1,3:4)])"
-
-# Default command
-CMD ["R"]