scons: drop obsolete enabled_apis variable

The variable was forgotten during the FEATURE_* removal.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

src/mesa/SConscript

@@ -18,9 +18,6 @@ env.Append(CPPPATH = [
     Dir('.'), # src/mesa build path
 ])
 
-enabled_apis = []
-enabled_apis += ['GL']
-
 if env['platform'] == 'windows':
     env.Append(CPPDEFINES = [
         '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
@@ -340,10 +337,6 @@ mesa_sources = (
 
 GLAPI = '#src/mapi/glapi/'
 
-if env['gles']:
-
-    enabled_apis += ['ES1', 'ES2']
-
 get_hash_header = env.CodeGenerate(
       target = 'main/get_hash.h',
       script = 'main/get_hash_generator.py',