Revert "Fix dlsym(3) to do breadth first search."

This reverts commit 422106a24d620af4be58e8d92a2e9b7b6167b72d.

Change-Id: I9e26a6933d10eb30438b521450f2010997ca5aee
diff --git a/linker/linker.h b/linker/linker.h
index 03672b2..e1112e6 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -238,7 +238,7 @@
 soinfo* find_containing_library(const void* addr);
 
 ElfW(Sym)* dladdr_find_symbol(soinfo* si, const void* addr);
-ElfW(Sym)* dlsym_handle_lookup(soinfo* si, soinfo** found, const char* name, soinfo* caller_si);
+ElfW(Sym)* dlsym_handle_lookup(soinfo* si, const char* name, soinfo* caller_si);
 
 void debuggerd_init();
 extern "C" abort_msg_t* g_abort_message;