Fix a couple of warnings uncovered by GCC12

Change-Id: Ib628a27bfc6f95a822e46b931ccfbed90f41b122

apps/menus/main_menu.c

@@ -338,7 +338,7 @@ static int info_speak_item(int selected_item, void * data)
 #ifdef HAVE_RECORDING
         case INFO_REC_DIR:
             talk_id(LANG_REC_DIR, false);
-            if (global_settings.rec_directory && global_settings.rec_directory[0])
+            if (global_settings.rec_directory[0])
             {
                 long *pathsep = NULL;
                 char rec_directory[MAX_PATHNAME+1];

lib/rbcodec/codecs/libgme/blip_buffer.c

@@ -53,7 +53,9 @@ void Blip_clear( struct Blip_Buffer* this )
 	this->reader_accum_ = 0;
 	this->modified      = false;
 
+#if 0	// this is redundant as buffer is static and triggers -Waddress
 	if ( this->buffer_ )
+#endif
 	{
 		int count = (entire_buffer ? this->buffer_size_ : Blip_samples_avail( this ));
 		memset( this->buffer_, 0, (count + blip_buffer_extra_) * sizeof (delta_t) );