python: drop explicit output_encoding='utf-8' in mako templates

Python 3 handles unicode strings by default, so we can drop all that.

Suggested-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3674>

src/compiler/nir/nir_intrinsics_c.py

@@ -78,8 +78,8 @@ def main():
     args = parser.parse_args()
 
     path = os.path.join(args.outdir, 'nir_intrinsics.c')
-    with open(path, 'wb') as f:
-        f.write(Template(template, output_encoding='utf-8').render(
+    with open(path, 'w') as f:
+        f.write(Template(template).render(
             INTR_OPCODES=INTR_OPCODES, INTR_INDICES=INTR_INDICES,
             reduce=reduce, operator=operator))
 

src/compiler/nir/nir_intrinsics_h.py

@@ -61,8 +61,8 @@ def main():
     args = parser.parse_args()
 
     path = os.path.join(args.outdir, 'nir_intrinsics.h')
-    with open(path, 'wb') as f:
-        f.write(Template(template, output_encoding='utf-8').render(INTR_OPCODES=INTR_OPCODES, INTR_INDICES=INTR_INDICES))
+    with open(path, 'w') as f:
+        f.write(Template(template).render(INTR_OPCODES=INTR_OPCODES, INTR_INDICES=INTR_INDICES))
 
 if __name__ == '__main__':
     main()

src/compiler/nir/nir_intrinsics_indices_h.py

@@ -86,8 +86,8 @@ def main():
     args = parser.parse_args()
 
     path = os.path.join(args.outdir, 'nir_intrinsics_indices.h')
-    with open(path, 'wb') as f:
-        f.write(Template(template, output_encoding='utf-8').render(INTR_INDICES=INTR_INDICES))
+    with open(path, 'w') as f:
+        f.write(Template(template).render(INTR_INDICES=INTR_INDICES))
 
 if __name__ == '__main__':
     main()