Remove unneeded libdl dependency

Closes: OS#1929

Change-Id: I0caea2a2a8e6bd07432fd73bae72b42b1ce022cd
diff --git a/Makefile.am b/Makefile.am
index 1e659a0..71f7b91 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,9 +22,9 @@
 
 ACLOCAL_AMFLAGS = -I config
 AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) $(USB_INCLUDES) $(WITH_INCLUDES)
-AM_CXXFLAGS = -Wall -pthread -ldl
-#AM_CXXFLAGS = -Wall -O2 -NDEBUG -pthread -ldl
-#AM_CFLAGS = -Wall -O2 -NDEBUG -pthread -ldl
+AM_CXXFLAGS = -Wall -pthread
+#AM_CXXFLAGS = -Wall -O2 -NDEBUG -pthread
+#AM_CFLAGS = -Wall -O2 -NDEBUG -pthread
 
 # Order must be preserved
 SUBDIRS = \