Remove pango installation docs

Author: naveen521kk

docs/source/installation/mac.rst

@@ -15,16 +15,6 @@ To install cairo:
 
    brew install cairo
 
-To install Pango and it dependencies:
-
-.. code-block:: bash
-
-   brew install pkg-config
-   brew install libffi
-   brew install pango
-   brew install glib
-
-
 To install ffmpeg:
 
 .. code-block:: bash

docs/source/installation/win.rst

@@ -18,32 +18,6 @@ You can install manim very easily using chocolatey, by typing the following comm
 And then you can skip all the other steps and move to installing :ref:`latex-installation`.
 Please see :doc:`troubleshooting` section for details about OSError.
 
-Pango Installation
-******************
-
-These steps would get you `libpango-1.0-0.dll` to your ``PATH`` along
-with other dependencies. You may probably have them before itself if
-you have installed `GTK <https://www.gtk.org/>`_ or any ``GTK``
-based app like emacs. If you have it you can just add it to your
-path and skip these steps.
-
-1. Go to `Release Page
-   <https://github.com/ManimCommunity/manim-windows/releases/latest>`_
-   and download the one according to your PC architechture.
-
-   .. important:: Please download the ``zip`` file for architechture of python installed.
-                  It is possible to have installed ``x86`` python installed on ``x64`` PC.
-
-2. Extract the zip file using File Explorer or 7z to the loaction you want to install.
-
-   .. code-block:: bash
-
-      7z x pango-windows-binaires-x64.zip -oC:\Pango
-
-3. Finally, add it `PATH variable
-   <https://www.computerhope.com/issues/ch000549.htm>`_.
-
-
 FFmpeg installation
 *******************