cleanup include of assert.h

src/chainparams.cpp

@@ -5,10 +5,11 @@
 
 #include "chainparams.h"
 
-#include "assert.h"
 #include "random.h"
 #include "util.h"
 
+#include <assert.h>
+
 #include <boost/assign/list_of.hpp>
 
 using namespace std;

src/chainparamsbase.cpp

@@ -5,9 +5,10 @@
 
 #include "chainparamsbase.h"
 
-#include "assert.h"
 #include "util.h"
 
+#include <assert.h>
+
 #include <boost/assign/list_of.hpp>
 
 using namespace boost::assign;