build/bin/sage-print-system-package-command: Simplify

Author: Matthias Koeppe

build/bin/sage-print-system-package-command

@@ -94,10 +94,7 @@ function print_shell_command()
     if [ -z "$WRAP" -o $# -lt 6 ]; then
         echo "${PROMPT}${quoted}"
     else
-        if [ -z "$SAGE_BOOTSTRAP_PYTHON" ]; then
-            SAGE_BOOTSTRAP_PYTHON=$(sage-bootstrap-python -c "import sys; print(sys.executable)")
-        fi
-        $SAGE_BOOTSTRAP_PYTHON -c "import textwrap; print(' \\\\\n'.join(textwrap.wrap(r'''${quoted}''', $WRAP, initial_indent=r'''${PROMPT}''', subsequent_indent=r'''${CONTINUATION}''', break_long_words=False, break_on_hyphens=False)))"
+        sage-bootstrap-python -c "import textwrap; print(' \\\\\n'.join(textwrap.wrap(r'''${quoted}''', $WRAP, initial_indent=r'''${PROMPT}''', subsequent_indent=r'''${CONTINUATION}''', break_long_words=False, break_on_hyphens=False)))"
     fi
     if [ -n "$OUTPUT_RST" ]; then
         echo