By default letter_box is disabled

AlexeyAB

2018-06-04 efaf684cb20b996db0cd6d99d20fabb4bc26859a

 src/rnn.c

@@ -129,7 +129,6 @@
void train_char_rnn(char *cfgfile, char *weightfile, char *filename, int clear, int tokenized)
{
    srand(time(0));
    data_seed = time(0);
    unsigned char *text = 0;
    int *tokens = 0;
    size_t size;