[master] 5343d84de build: Remove ad-hoc test target

[Dridi Boukelmoune]

commit 5343d84de42695972d6d28b89a664b445d0d89a7
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Thu Aug 12 08:51:08 2021 +0200

    build: Remove ad-hoc test target
    
    One can always run `make -C include/ check VERBOSE=1` for feature
    parity, and even get the other goodies from the regular test driver.

diff --git a/include/Makefile.am b/include/Makefile.am
index 1eeaa3537..dffea027d 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -169,6 +169,3 @@ _vrt.c: Makefile.am vdef.h vrt.h
 vrt_test: _vrt.c
 	echo "exec ${CC} -c -o _vrt_test _vrt.c" > $@
 	chmod +x $@
-
-test: ${TESTS}
-	@for test in ${TESTS} ; do ./$${test} ; done