rtmp: remove unused functions

rtmp/rtmp.go

@@ -1677,12 +1677,6 @@ func C_RTMP_Write(r *C_RTMP, buf []byte) int {
 	return size
 }
 
-func memmove(to, from unsafe.Pointer, n uintptr) {
-	if to != nil && from != nil && n != 0 {
-		copy((*[_Gi]byte)(to)[:n], (*[_Gi]byte)(from)[:n])
-	}
-}
-
 // Creates a new C style string from a go string
 func goStrToCStr(str string) *byte {
 	l := len(str)
@@ -1717,15 +1711,6 @@ func decBytePtr(ptr unsafe.Pointer, dec int) unsafe.Pointer {
 	return decPtr(ptr, dec, 1)
 }
 
-// sliceToPtr get's the address of the first data element and returns as unsafe
-// pointer
-func sliceToPtr(data []byte) unsafe.Pointer {
-	if len(data) == 0 {
-		return nil
-	}
-	return unsafe.Pointer(&data[0])
-}
-
 var rtmpErrs = [...]string{
 	1: "rtmp: not connected",
 	2: "rtmp: write error",