Revert "doc: Install Rosetta on M1-macOS for qt in depends"

This reverts commit cdb41d5.

It is no longer required because of the previous commit.

Author: hebasto

depends/README.md

@@ -87,14 +87,6 @@ For linux S390X cross compilation:
 
     sudo apt-get install g++-s390x-linux-gnu binutils-s390x-linux-gnu
 
-### Install the required dependencies: M1-based macOS
-
-To be able to build the `qt` package, ensure that Rosetta 2 is installed:
-
-```
-softwareupdate --install-rosetta
-```
-
 ### Dependency Options
 
 The following can be set when running make: `make FOO=bar`