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Removed unnecessary optimization function

--- a/dumb/src/helpers/lanczos_resampler.c

+++ b/dumb/src/helpers/lanczos_resampler.c

@@ -13,12 +13,6 @@

 enum { lanczos_buffer_size = LANCZOS_WIDTH * 4 };

-int my_abs(int in)

-{

-	int const mask = in >> sizeof(int) * CHAR_BIT - 1;

-	return (in + mask) ^ mask;

-}

-

 int fEqual(const double b, const double a)

 {

 	return fabs(a - b) < 1.0e-6;

@@ -34,7 +28,7 @@

 	unsigned i;

 	double dx = (double)(LANCZOS_WIDTH) / LANCZOS_SAMPLES, x = 0.0;

 	for (i = 0; i < LANCZOS_SAMPLES + 1; ++i, x += dx)

-		lanczos_lut[i] = my_abs(x) < LANCZOS_WIDTH ? sinc(x) * sinc(x / LANCZOS_WIDTH) : 0.0;

+		lanczos_lut[i] = abs(x) < LANCZOS_WIDTH ? sinc(x) * sinc(x / LANCZOS_WIDTH) : 0.0;

 }

 typedef struct lanczos_resampler

@@ -164,7 +158,7 @@

 			for (; i >= -LANCZOS_WIDTH + 1; --i)

 			{

 				int pos = i * step;

-				kernel_sum += kernel[i + LANCZOS_WIDTH - 1] = lanczos_lut[my_abs(phase_adj - pos)];

+				kernel_sum += kernel[i + LANCZOS_WIDTH - 1] = lanczos_lut[abs(phase_adj - pos)];

 			}

 			for (sample = 0, i = 0; i < LANCZOS_WIDTH * 2; ++i)

 				sample += in[i] * kernel[i];