remove redundant installation guideline

Signed-off-by: Martijn Govers <[email protected]>

Author: mgovers

docs/advanced_documentation/c-api.md

@@ -24,21 +24,6 @@ program to use this C API.
 
 In this documentation, the main design choices and concepts of the C API are presented.
 
-## Installation
-
-To install this library, please follow the steps to [build from source](./build-guide.md).
-You can also install via Homebrew:
-
-```bash
-brew install powergridmodel/pgm/power-grid-model
-```
-
-Note that you will need to satisfy the basic minimum [build requirements](./build-guide.md#build-requirements).
-
-If you are interested in having this package in [`homebrew-core`](https://github.com/Homebrew/homebrew-core), please
-consider contributing the [formula](https://github.com/PowerGridModel/homebrew-pgm), in conformance to
-[their documentation](https://docs.brew.sh/Acceptable-Formulae).
-
 ## Finding and linking the package
 
 The package can be loaded using the Config mode of the `find_package` CMake command.