remove efl:sl wrappers (supposed to go in skyline)

Author: 3096

include/eiffel/sl.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <switch.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -18,11 +16,6 @@ typedef enum {
     EFL_LOG_LEVEL_ERROR = 2,
 } EiffelLogLevel;
 
-Result eiffelSlInitialize();
-void eiffelSlExit();
-
-Result eiffelSlLog(const char* moduleName, EiffelLogLevel level, const char* logContent);
-
 #ifdef __cplusplus
 }
 #endif