scons: Move texenvprogram.c to ff_fragment_shader.cpp.

src/mesa/SConscript

@@ -68,6 +68,7 @@ main_sources = [
     'main/extensions.c',
     'main/fbobject.c',
     'main/feedback.c',
+    'main/ff_fragment_shader.cpp',
     'main/ffvertex_prog.c',
     'main/fog.c',
     'main/formats.c',
@@ -111,7 +112,6 @@ main_sources = [
     'main/texcompress_s3tc.c',
     'main/texcompress_fxt1.c',
     'main/texenv.c',
-    'main/texenvprogram.c',
     'main/texfetch.c',
     'main/texformat.c',
     'main/texgen.c',