Update docs for -j on ctest

Author: Mab879

docs/developer/developer.adoc

@@ -168,10 +168,6 @@ Now you can execute the following command to run library self-checks:
 $ ctest
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-Note that using the `--jobs/-j` flag is currently not supported.
-It will cause unexpected test failures.
-See link:https://github.com/OpenSCAP/openscap/issues/2057[#2057] for more details.
-
 It's also possible to use `ctest` to test any other oscap binary present in the system. You just have to set the path of the binary to the CUSTOM_OSCAP variable:
 
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