Addressed copilot's comment

Author: danielinux

src/xmalloc.c

@@ -185,14 +185,10 @@ struct xmalloc_slot {
         #define MP_CURVE_FIELD_COUNT_SIZE (380)
         #ifndef _LP64
             #define ECC_POINT_SIZE (412)
-            #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
         #else
             #define ECC_POINT_SIZE (512)
-            #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
-        #endif
-        #ifndef MP_INT_BUFFER_SIZE
-        #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 5)
         #endif
+        #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
         #define MP_INT_BUFFER_SIZE_1 (MP_INT_TYPE_SIZE * 6)
         #define MP_DIGIT_BUFFER_MONT_SIZE (sizeof(fp_digit)*(FP_SIZE + 1))
     #endif
@@ -202,14 +198,10 @@ struct xmalloc_slot {
         #define MP_CURVE_FIELD_COUNT_SIZE (380)
         #ifndef _LP64
             #define ECC_POINT_SIZE (520)
-            #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
         #else
             #define ECC_POINT_SIZE (608)
-            #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
-        #endif
-        #ifndef MP_INT_BUFFER_SIZE
-        #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 5)
         #endif
+        #define MP_INT_BUFFER_SIZE (MP_INT_TYPE_SIZE * 6)
         #define MP_INT_BUFFER_SIZE_1 (MP_INT_TYPE_SIZE * 6)
         #define MP_DIGIT_BUFFER_MONT_SIZE (sizeof(fp_digit)*(FP_SIZE + 1))
     #endif