all: fix whitespace/new-line issues

libswresample/soxr_resample.c

@@ -127,4 +127,3 @@ struct Resampler const swri_soxr_resampler={
     create, destroy, process, flush, NULL /* set_compensation */, get_delay,
     invert_initial_buffer, get_out_samples
 };
-

libswresample/swresample_frame.c

@@ -172,4 +172,3 @@ int swr_convert_frame(SwrContext *s,
 
     return convert_frame(s, out, in);
 }
-

libswresample/version.c

@@ -43,4 +43,3 @@ const char *swresample_license(void)
 #define LICENSE_PREFIX "libswresample license: "
     return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
 }
-