patch 8.1.1306: Borland support is outdated and doesn't work

Problem:    Borland support is outdated and doesn't work.
Solution:   Remove Borland support, there are other (free) compilers
            available. (Thomas Dziedzic, Ken Takata, closes #4364)
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 2676832..f3b1faf 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -12500,16 +12500,8 @@
 }
 #endif
 
-static int
-#ifdef __BORLANDC__
-    _RTLENTRYF
-#endif
-	item_compare(const void *s1, const void *s2);
-static int
-#ifdef __BORLANDC__
-    _RTLENTRYF
-#endif
-	item_compare2(const void *s1, const void *s2);
+static int item_compare(const void *s1, const void *s2);
+static int item_compare2(const void *s1, const void *s2);
 
 /* struct used in the array that's given to qsort() */
 typedef struct
@@ -12540,9 +12532,6 @@
  * Compare functions for f_sort() and f_uniq() below.
  */
     static int
-#ifdef __BORLANDC__
-_RTLENTRYF
-#endif
 item_compare(const void *s1, const void *s2)
 {
     sortItem_T  *si1, *si2;
@@ -12627,9 +12616,6 @@
 }
 
     static int
-#ifdef __BORLANDC__
-_RTLENTRYF
-#endif
 item_compare2(const void *s1, const void *s2)
 {
     sortItem_T  *si1, *si2;