Revert addition of test_install

test_install/Makefile

@@ -1,15 +0,0 @@
-#
-# tests of installed headers and libs
-#
-
-INSTALLDIR = ../install
-
-.PHONY: all
-all: test_sched_include
-
-test_sched_include: test_sched_include.c
-	$(CC) -c -I$(INSTALLDIR)/include $<
-
-.PHONY: clean
-clean:
-	rm -f *.o

test_install/test_sched_include.c

@@ -1,5 +0,0 @@
-// tests that inclusion of openblas_config.h works with musl
-
-#include <openblas_config.h>
-
-cpu_set_t* cpu_set = NULL;