tests: move vapi C/C++ test files into src/

Type: improvement
Change-Id: Iaad004661db1e9076e6c27227878f1612fa7289f
Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Klement Sekera <ksekera@cisco.com>
diff --git a/test/Makefile b/test/Makefile
index 8209588..6726ac3 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -194,10 +194,6 @@
 	         echo \"*******************************************************************\" &&\
 		 false)"
 
-.PHONY: ext-test-apps
-ext-test-apps:
-	make -C ext test-apps
-
 $(FAILED_DIR): reset
 	@mkdir -p $@
 
@@ -205,7 +201,7 @@
 test-dep: $(PAPI_INSTALL_DONE) $(FAILED_DIR)
 
 .PHONY: test
-test: test-dep ext-test-apps sanity
+test: test-dep sanity
 	$(call retest-func)
 
 .PHONY: retest