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Small cleanup of the tuneSample() function

--- a/src/ft2_replayer.c

+++ b/src/ft2_replayer.c

@@ -135,7 +135,7 @@

 		return;

 	}

-	// handle frequency boundaries

+	// handle frequency boundaries first...

 	if (midCFreq <= (int32_t)dPeriod2HzTab[note2Period[MIN_PERIOD]])

 	{

@@ -151,8 +151,7 @@

 		return;

 	}

-	// check if midCFreq is matching any of the clean note frequencies (C-0..B-9)

-

+	// check if midCFreq is matching any of the non-finetuned note frequencies (C-0..B-9)

 	for (int8_t i = 0; i < 10*12; i++)

 	{

 		if (midCFreq == (int32_t)dPeriod2HzTab[note2Period[16 + (i<<4)]])

@@ -168,7 +167,7 @@

 	int32_t period = MAX_PERIOD;

 	for (; period >= MIN_PERIOD; period--)

 	{

-		const int32_t curr = (int32_t)dPeriod2HzTab[note2Period[period+0]];

+		const int32_t curr = (int32_t)dPeriod2HzTab[note2Period[period]];

 		if (midCFreq == curr)

 			break;

@@ -184,12 +183,6 @@

 			period++;

 			break; // current+1 is the closest

 		}

-	}

-

-	if (period == -1) // frequency was too for period table

-	{

-		s->fine = s->relTon = 0;

-		return;

 	}

 	s->fine = ((period & 31) - 16) << 3;