Add missing library header, remove unused function
https://bugs.gentoo.org/920316
https://bugs.gentoo.org/741080
--- a/grid/Pegasus/mPresentation.c	2025-03-02 22:04:54.247085465 +0400
+++ b/grid/Pegasus/mPresentation.c	2025-03-02 22:06:57.356329407 +0400
@@ -14,6 +14,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <strings.h>
+#include <string.h>
 
 #define MAXLEN 20000
 
--- a/lib/src/two_plane_v1.1/initdistdata.c	2025-03-02 22:04:54.227996254 +0400
+++ b/lib/src/two_plane_v1.1/initdistdata.c	2025-03-02 22:06:11.307762628 +0400
@@ -26,18 +26,6 @@
   return 0;
 }
 
-void closefitsfile()
-{ 
-  int I_fits_return_status=0;
-  fits_close_file(ffp_FITS_In, &I_fits_return_status); 
-  if (I_fits_return_status != 0)
-  {
-     fprintf(stderr, "Error closing file\n");
-     return -1;
-  }
-  return 0;
-}
-
 int initdata_byheader(char *fitsheader, DistCoeff *coeff) 
 {
   int i, j, m=0, n=0;