remove old files

sem1/hello.c

@@ -1,10 +0,0 @@
-#include <mpi.h> 
-#include <stdio.h>
-int main(int argc, char *argv[]){  
-    int commsize, my_rank;
-    MPI_Init(&argc,&argv);  
-    MPI_Comm_size(MPI_COMM_WORLD, &commsize);
-    MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
-    printf ("Communicator size= %d My rank= %d\n", commsize,my_rank);  
-    MPI_Finalize();
-}