remove old nominatim.py in favour of 'nominatim index'

The PHP scripts need to know the position of the nominatim
tool in order to call it. This is handed in as environment
variable, so it can be set by the Python script.

cmake/script.tmpl

@@ -8,5 +8,6 @@ require('@CMAKE_SOURCE_DIR@/lib/dotenv_loader.php');
 @define('CONST_DataDir', '@CMAKE_SOURCE_DIR@');
 
 loadDotEnv();
+$_SERVER['NOMINATIM_NOMINATIM_TOOL'] = '@CMAKE_BINARY_DIR@/nominatim';
 
 require_once('@CMAKE_SOURCE_DIR@/lib/admin/@script_source@');

cmake/tool.tmpl

@@ -1,8 +1,11 @@
 #!/usr/bin/env python3
 import sys
+import os
 
 sys.path.insert(1, '@CMAKE_SOURCE_DIR@')
 
+os.environ['NOMINATIM_NOMINATIM_TOOL'] = __file__
+
 from nominatim import cli
 
 exit(cli.nominatim(module_dir='@CMAKE_BINARY_DIR@/module',