Remove unnecessary includes. From Michael W. Bombardieri <mb at ii.net>.

aucat/abuf.c

@@ -22,9 +22,7 @@
  * as follows: the write starts filling at offset (start + used), once the data
  * is ready, the writer adds to used the count of bytes available.
  */
-#include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 
 #include "abuf.h"
 #include "utils.h"

aucat/afile.c

@@ -15,8 +15,6 @@
  */
 
 #include <fcntl.h>
-#include <stdlib.h>
-#include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 #include "afile.h"

aucat/aucat.c

@@ -14,13 +14,11 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <fcntl.h>
 #include <errno.h>
 #include <limits.h>
 #include <poll.h>
 #include <signal.h>
 #include <sndio.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>

aucat/dsp.c

@@ -14,7 +14,6 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#include <string.h>
 #include "dsp.h"
 #include "utils.h"
 

aucat/utils.c

@@ -24,7 +24,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <fcntl.h>
 #include "utils.h"
 
 /*