Deepfreeze essential parts of the encodings module. ### Description

This is a split off from #3582.

Deepfreeze essential parts of encodings module (encodings.\__init__, encodings.utf_8, and encodings.aliases), which is required during the Python bootstrap.

From 3fa7120184e2a133c787a230e2f2cdde8652fca3 Mon Sep 17 00:00:00 2001
From: Gyeongjae Choi <def6488@gmail.com>
Date: Thu, 25 Aug 2022 07:50:50 +0000
Subject: [PATCH] Remove include path check

---
 libheif/build.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libheif/build.py b/libheif/build.py
index 9c6fe51..72c63b9 100644
--- a/libheif/build.py
+++ b/libheif/build.py
@@ -45,8 +45,6 @@ elif sys.platform.lower() == "win32":
     if include_path_prefix is None:
         include_path_prefix = "C:\\msys64\\mingw64"
         warn(f"MSYS2_PREFIX environment variable is not set. Assuming `MSYS2_PREFIX={include_path_prefix}`")
-else:
-    include_path_prefix = linux_build_libs.build_libs()

 # Need to include "lib" directory to find "heif" library.
 include_path_prefix_lib = path.join(include_path_prefix, "lib")
-- 
2.37.0
From 3fa7120184e2a133c787a230e2f2cdde8652fca3 Mon Sep 17 00:00:00 2001
From: Gyeongjae Choi <def6488@gmail.com>
Date: Thu, 25 Aug 2022 07:50:50 +0000
Subject: [PATCH] Remove include path check

---
 libheif/build.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libheif/build.py b/libheif/build.py
index 9c6fe51..72c63b9 100644
--- a/libheif/build.py
+++ b/libheif/build.py
@@ -45,8 +45,6 @@ elif sys.platform.lower() == "win32":
     if include_path_prefix is None:
         include_path_prefix = "C:\\msys64\\mingw64"
         warn(f"MSYS2_PREFIX environment variable is not set. Assuming `MSYS2_PREFIX={include_path_prefix}`")
-else:
-    include_path_prefix = linux_build_libs.build_libs()

 # Need to include "lib" directory to find "heif" library.
 include_path_prefix_lib = path.join(include_path_prefix, "lib")
-- 
2.37.0