Remove broken Bash completion symlink.

I added it when installing an old version of Helm from a tarball under
/usr/local but now the parent directory doesn't exist anymore.

Dockerfile

@@ -178,7 +178,6 @@ RUN apt-get update && \
     && \
     sed -i 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/; s/# en_IL UTF-8/en_IL UTF-8/; s/# he_IL.UTF-8 UTF-8/he_IL.UTF-8 UTF-8/;' /etc/locale.gen && \
     locale-gen && \
-    ln --symbolic --target /etc/bash_completion.d/ /usr/local/etc/bash_completion.d/* && \
     ln --symbolic --target /usr/local/bin/ /usr/libexec/flatpak-xdg-utils/* && \
     python3 -m pip install --use-deprecated=legacy-resolver --no-cache-dir \
         ansible \