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Fixing the qtheta dependency for the delta allocation

Removed useless code in transient_analysis()

--- a/libcelt/bands.c

+++ b/libcelt/bands.c

@@ -786,7 +786,7 @@

          if (B>1 && !stereo)

             delta >>= 1;

-         mbits = (b-qalloc/2-delta)/2;

+         mbits = (b-qalloc-delta)/2;

          if (mbits > b-qalloc)

             mbits = b-qalloc;

          if (mbits<0)

--- a/libcelt/celt.c

+++ b/libcelt/celt.c

@@ -284,10 +284,6 @@

    } else {

       ratio = DIV32(begin[len],1+MAX32(*frame_max, begin[n-16]));

    }

-   if (ratio < 0)

-      ratio = 0;

-   if (ratio > 1000)

-      ratio = 1000;

    if (ratio > 45)

       *transient_shift = 3;