core/fasta.cpp: remove duplicate stdout message

Corrects bug introduced by 59a1bcf6.

algo/core/fasta.cpp

@@ -47,7 +47,6 @@ Fasta::Fasta(const string &input,
   if (!input.size()) // Do not open empty files (D germline if not segmentD)
     return ;
 
-  out << "  <== " << input ;
   add(input);  
 }