Revert "Bionic loader is no longer hijacking libdl.so"

This reverts commit c12acef96bd80c419654e159e1dc24a69513a86d.

Breaks the Mips build.

Bug: 27106625
Change-Id: I27edb7114065c36e1b618e387530d58189cdb184
diff --git a/linker/linker_soinfo.h b/linker/linker_soinfo.h
index 7ef5da2..a0fe9e2 100644
--- a/linker/linker_soinfo.h
+++ b/linker/linker_soinfo.h
@@ -336,7 +336,7 @@
   android_namespace_list_t secondary_namespaces_;
   uintptr_t handle_;
 
-  friend soinfo* get_libdl_info(const char* linker_path);
+  friend soinfo* get_libdl_info();
 };
 
 // This function is used by dlvsym() to calculate hash of sym_ver