Clean up whitespace and remove unneeded variable initialization as found by

Clang.

Modules/audioop.c

@@ -498,9 +498,8 @@ audioop_findfit(PyObject *self, PyObject *args)
 
         best_result = result;
         best_j = 0;
-        j = 0;
 
-        for ( j=1; j<=len1-len2; j++) {
+        for (j=1; j<=len1-len2; j++) {
                 aj_m1 = (double)cp1[j-1];
                 aj_lm1 = (double)cp1[j+len2-1];
 
@@ -584,9 +583,8 @@ audioop_findmax(PyObject *self, PyObject *args)
 
         best_result = result;
         best_j = 0;
-        j = 0;
 
-        for ( j=1; j<=len1-len2; j++) {
+        for (j=1; j<=len1-len2; j++) {
                 aj_m1 = (double)cp1[j-1];
                 aj_lm1 = (double)cp1[j+len2-1];
 
@@ -1434,7 +1432,6 @@ audioop_lin2adpcm(PyObject *self, PyObject *args)
         if ( state == Py_None ) {
                 /* First time, it seems. Set defaults */
                 valpred = 0;
-                step = 7;
                 index = 0;
         } else if ( !PyArg_ParseTuple(state, "ii", &valpred, &index) )
                 return 0;
@@ -1536,7 +1533,6 @@ audioop_adpcm2lin(PyObject *self, PyObject *args)
         if ( state == Py_None ) {
                 /* First time, it seems. Set defaults */
                 valpred = 0;
-                step = 7;
                 index = 0;
         } else if ( !PyArg_ParseTuple(state, "ii", &valpred, &index) )
                 return 0;