- remove rename php.ini-development from user space build

- temporary disable igbinary, because install not successfully completed with segmentation fault
* partition of tune opts semantically divided
- remove unused env-vars from docker compose base in src and user space builds

src/dockerfiles/php-fpm/php.base.Dockerfile

@@ -102,6 +102,10 @@ RUN sed -i "s/^log_limit = .*/log_limit = 1024/g" "$PHP_INI_DIR/../php-fpm.d/doc
 # https://github.com/php/php-src/blob/master/php.ini-development
 RUN mv "$PHP_INI_DIR/php.ini-development" "$PHP_INI_DIR/php.ini"
 
+###########################################################################
+# Tune opts:
+###########################################################################
+
 ARG PHP_OPT_SHORT_OPEN_TAG=Off
 RUN sed -i "s/^short_open_tag = .*/short_open_tag = $PHP_OPT_SHORT_OPEN_TAG/g" "$PHP_INI_DIR/php.ini"