slurmrestd - Remove unneeded include

Issue: 50189
diff --git a/src/slurmrestd/http.h b/src/slurmrestd/http.h
index 6f1f88c..0b2bb21 100644
--- a/src/slurmrestd/http.h
+++ b/src/slurmrestd/http.h
@@ -43,7 +43,6 @@
 #include "src/common/list.h"
 
 #include "src/conmgr/conmgr.h"
-#include "src/interfaces/http_parser.h"
 
 struct on_http_request_args_s;
 typedef struct on_http_request_args_s on_http_request_args_t;