Simplify autogen

The autogen script is doing too many things. The tests that are set up
in the git hooks are already tested by GitHub with actions on branch
push. Also they don't work if you install wolfSSL somewhere specific.
All one needs to do is run `autoreconf -ivf` to make the configure
script. This is all autogen does now, with the addition of warnings.

autogen.sh

@@ -2,52 +2,8 @@
 #
 # Create configure and makefile stuff...
 
-# Check environment
-if [ -n "$WSL_DISTRO_NAME" ]; then
-    # we found a non-blank WSL environment distro name
-    current_path="$(pwd)"
-    pattern="/mnt/?"
-    if [ "$(echo "$current_path" | grep -E "^$pattern")" ]; then
-        # if we are in WSL and shared Windows file system, 'ln' does not work.
-        no_links=true
-    else
-        no_links=
-    fi
-fi
-
-# Git hooks should come before autoreconf.
-if [ -d .git ]; then
-    if [ ! -d .git/hooks ]; then
-        mkdir .git/hooks || exit $?
-    fi
-
-    if [ -n "$no_links" ]; then
-        echo "Linux ln does not work on shared Windows file system in WSL."
-        if [ ! -e .git/hooks/pre-commit ]; then
-            echo "The pre-commit.sh file will not be copied to .git/hooks/pre-commit"
-            # shell scripts do not work on Windows; TODO create equivalent batch file
-            # cp ./pre-commit.sh .git/hooks/pre-commit || exit $?
-        fi
-        # unlike wolfssl, wolfssh is not using pre-push.sh at this time. Enable as needed:
-        # if [ ! -e .git/hooks/pre-push ]; then
-        #     echo "The pre-push.sh file will not be copied to .git/hooks/pre-commit"
-        #     # shell scripts do not work on Windows; TODO create equivalent batch file
-        #     # cp ./pre-push.sh .git/hooks/pre-push || exit $?
-        # fi
-    else
-        if [ ! -e .git/hooks/pre-commit ]; then
-            ln -sf ../../scripts/pre-commit.sh .git/hooks/pre-commit || exit $?
-        fi
-        # unlike wolfssl, wolfssh is not using pre-push.sh at this time  Enable as needed:
-        # if [ ! -e .git/hooks/pre-push ]; then
-        #     ln -s ../../pre-push.sh .git/hooks/pre-push || exit $?
-        # fi
-    fi
-fi
-
 # If this is a source checkout then call autoreconf with error as well
-if test -e .git
-then
+if [ -e .git ]; then
   WARNINGS="all,error"
 else
   WARNINGS="all"