linking/hello: fixup Makefiles

It is good to have Makefile and autotool versions for compare. But
the Makefiles should not be intentially horrible. Clean them up to
the level that we teach in the training.

Signed-off-by: John Ogness <john.ogness@linutronix.de>

1 files changed, 1 insertions, 3 deletions

diff --git a/schulung_tools/linking/hello/hello.c b/schulung_tools/linking/hello/hello.c
index 82b8d53..9b8d43a 100644
--- a/schulung_tools/linking/hello/hello.c
+++ b/schulung_tools/linking/hello/hello.c
@@ -1,7 +1,5 @@
 #include <stdio.h>
-
-void func1(void);
-void func2(void);
+#include <func.h>
 
 int main(void)
 {