Fix a linking error with -Dlinux_link_kerberos on Gentoo.

net/http/http_auth_gssapi_posix.cc

Index: net/http/http_auth_gssapi_posix.cc
diff --git a/net/http/http_auth_gssapi_posix.cc b/net/http/http_auth_gssapi_posix.cc
index cc27e70b18af1375bdb7fcd28d83fb3339a122cf..37b28df8f845cd2a597b887377bd0703f93c52c1 100644
--- a/net/http/http_auth_gssapi_posix.cc
+++ b/net/http/http_auth_gssapi_posix.cc
@@ -17,7 +17,6 @@
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 
-#if defined(DLOPEN_KERBEROS)
 // These are defined for the GSSAPI library:
 // Paraphrasing the comments from gssapi.h:
 // "The implementation must reserve static storage for a
@@ -63,7 +62,6 @@ gss_OID GSS_C_NT_HOSTBASED_SERVICE_X = &GSS_C_NT_HOSTBASED_SERVICE_X_VAL;
 gss_OID GSS_C_NT_HOSTBASED_SERVICE = &GSS_C_NT_HOSTBASED_SERVICE_VAL;
 gss_OID GSS_C_NT_ANONYMOUS = &GSS_C_NT_ANONYMOUS_VAL;
 gss_OID GSS_C_NT_EXPORT_NAME = &GSS_C_NT_EXPORT_NAME_VAL;
-#endif  // defined(DLOPEN_KERBEROS)
 
 namespace net {