[gimp/revert-c008ef7e] Revert "app: Prevent parallel builds for the tests"

[Michael Schumacher <schumaml src gnome org>]

commit c89e13ee8cc73797560c8233935193106b9c2ad5
Author: Michael Schumacher <schumaml gmx net>
Date:   Fri Jun 29 07:57:16 2018 +0000

    Revert "app: Prevent parallel builds for the tests"
    
    This reverts commit c008ef7e85614064a695dcad5cd220399db0007e

 app/tests/Makefile.am | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/app/tests/Makefile.am b/app/tests/Makefile.am
index 0cc075bb47..b9be39c800 100644
--- a/app/tests/Makefile.am
+++ b/app/tests/Makefile.am
@@ -1,7 +1,3 @@
-# Prevent parallel builds for the tests, as e.g. done by make -j check
-# The tests must not be run in parallel or in a different order as specified
-.NOTPARALLEL
-
 SUBDIRS = \
        files           \
        gimpdir         \