Unify test source files.

test/main/relay_chn_test.c

@@ -73,3 +73,12 @@ TEST_CASE("Relay channels do not change state for invalid channel", "[relay_chn]
     relay_chn_flip_direction(relay_chn_count + 1); // Flip the direction
     check_channels_state_unchanged();
 }
+
+
+
+// Test app entry point
+void app_main(void) 
+{
+    // Run the Unity tests menu
+    unity_run_menu();
+}

test/main/relay_chn_test_main.c

@@ -1,21 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include "unity.h"
-#include "unity_test_runner.h"
-
-
-static void print_banner(const char*);
-
-void app_main(void) {
-
-    print_banner("Starting interactive test menu");
-    /* This function will not return, and will be busy waiting for UART input.
-     * Make sure that task watchdog is disabled if you use this function.
-     */
-    unity_run_menu();
-}
-
-static void print_banner(const char* text)
-{
-    printf("\n##### %s #####\n\n", text);
-}