AudioFormat: include cleanup

src/AudioFormat.hxx

@@ -23,7 +23,6 @@
 #include "pcm/SampleFormat.hxx"
 #include "Compiler.h"
 
-#include <assert.h>
 #include <stdint.h>
 #include <stddef.h>
 

src/output/plugins/RoarOutputPlugin.cxx

@@ -36,6 +36,8 @@
 #include <roaraudio.h>
 #undef new
 
+#include <assert.h>
+
 class RoarOutput {
 	friend struct AudioOutputWrapper<RoarOutput>;
 

src/pcm/ConfiguredResampler.cxx

@@ -35,6 +35,7 @@
 #include "SoxrResampler.hxx"
 #endif
 
+#include <assert.h>
 #include <string.h>
 
 enum class SelectedResampler {

src/pcm/PcmExport.cxx

@@ -32,6 +32,8 @@
 #include "PcmDop.hxx"
 #endif
 
+#include <assert.h>
+
 void
 PcmExport::Open(SampleFormat sample_format, unsigned _channels,
 		Params params)