refactoring: removed unnecessary description

src/arithmeticMultiplication_Float.c

@@ -4,7 +4,7 @@
 float* multiplication_float(float a, float b) {
     float* result = (float*)malloc(sizeof(float));
     if (result == NULL) {
-        return NULL; // Handle memory allocation failure
+        return NULL;
     }
     *result = a * b;
     return result;