🔥 Remove SDKman, jenv and related upgrades

The sdkman and jenv initialization snippets and their related upgrade commands were removed from bash_profile, bash_aliases, bash_functions, and bashrc. These tools are no longer needed in the project, thus cleaning the bash environment setup and reducing potential issues and maintenance effort.

src/shell/bash_functions

@@ -428,32 +428,6 @@ update_terminal_cwd() {
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
-# Upgrade jenv if it is installed.
-
-upgrade-jenv() {
-
-    declare -r JENV_DIRECTORY="$HOME/.jenv"
-
-    if [ -d "$JENV_DIRECTORY" ]; then # -d : True if file exists and is a directory.
-        # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-        # Ensure the latest version of `jenv` is used
-
-        execute_without_spinner \
-            "cd $JENV_DIRECTORY \
-                && git fetch --quiet origin \
-                && git checkout --quiet \$(git describe --abbrev=0 --tags) \
-                && . $HOME/.bash.local \
-                && cd -" \
-            "jenv (upgrade)"
-
-        # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-    fi
-}
-
-# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
 # Upgrade nvm if it is installed.
 
 upgrade-nvm() {

src/shell/bash_profile

@@ -62,8 +62,3 @@ unset -f source_bash_files
 # and time of the last login, the message of the day, etc.).
 
 if test -z "$TMUX"; then eval clear; fi
-
-# sdkman init snippet. See install script at https://get.sdkman.io/
-#THIS MUST BE AT THE END OF THE FILE FOR SDKMAN TO WORK!!!
-export SDKMAN_DIR="${HOME}/.sdkman"
-[[ -s "${SDKMAN_DIR}/bin/sdkman-init.sh" ]] && . "${SDKMAN_DIR}/bin/sdkman-init.sh" || return 0

src/shell/bashrc

@@ -9,7 +9,3 @@
 # PS1 : Prompt String 1
 [ -n "$PS1" ] \
     && . "$HOME/.bash_profile"
-
-# Below statement to stop sdkman install script from adding it's initialisation in both .bashrc and .bash_profile files
-# See 'Attempt update of bash profiles' in install script at https://get.sdkman.io/
-# sdkman-init.sh

src/shell/macos/bash_aliases

@@ -124,8 +124,6 @@ alias u="sudo softwareupdate --install --all \
             && brew cleanup \
             && mas upgrade \
             && bash-it update \
-            && upgrade-jenv \
-            && sdk selfupdate \
             && upgrade-nvm \
             && npm install -g npm \
             && npm update -g \