Fix DISABLE_FLOAT_API unused parameter warning
diff --git a/celt/celt_encoder.c b/celt/celt_encoder.c
index 66b5f00..adf8573 100644
--- a/celt/celt_encoder.c
+++ b/celt/celt_encoder.c
@@ -1222,6 +1222,8 @@
 #ifndef DISABLE_FLOAT_API
    if (analysis->valid)
       gain1 *= analysis->max_pitch_ratio;
+#else
+   (void)analysis;
 #endif
    /* Gain threshold for enabling the prefilter/postfilter */
    pf_threshold = QCONST16(.2f,15);