Remove unused .patch files

scripts/possible.patch

-Index: memcheck/mc_main.c
-===================================================================
---- memcheck/mc_main.c  (revision 10880)
-+++ memcheck/mc_main.c  (working copy)
-@@ -4658,6 +4658,7 @@
- LeakCheckMode MC_(clo_leak_check)             = LC_Summary;
- VgRes         MC_(clo_leak_resolution)        = Vg_HighRes;
- Bool          MC_(clo_show_reachable)         = False;
-+Bool          MC_(clo_show_possible)          = True;
- Bool          MC_(clo_workaround_gcc296_bugs) = False;
- Int           MC_(clo_malloc_fill)            = -1;
- Int           MC_(clo_free_fill)              = -1;
-@@ -4711,6 +4712,7 @@
- 
-        if VG_BOOL_CLO(arg, "--partial-loads-ok", MC_(clo_partial_loads_ok)) {}
-    else if VG_BOOL_CLO(arg, "--show-reachable",   MC_(clo_show_reachable))   {}
-+   else if VG_BOOL_CLO(arg, "--show-possible",   MC_(clo_show_possible))   {}
-    else if VG_BOOL_CLO(arg, "--workaround-gcc296-bugs",
-                                             MC_(clo_workaround_gcc296_bugs)) {}
- 
-@@ -4776,6 +4778,7 @@
- "    --leak-check=no|summary|full     search for memory leaks at exit?  [summary]\n"
- "    --leak-resolution=low|med|high   differentiation of leak stack traces [high]\n"
- "    --show-reachable=no|yes          show reachable blocks in leak check? [no]\n"
-+"    --show-possible=no|yes           show possibly lost blocks in leak check? [yes]\n"
- "    --undef-value-errors=no|yes      check for undefined value errors [yes]\n"
- "    --track-origins=no|yes           show origins of undefined values? [no]\n"
- "    --partial-loads-ok=no|yes        too hard to explain here; see manual [no]\n"
-Index: memcheck/mc_include.h
-===================================================================
---- memcheck/mc_include.h       (revision 10880)
-+++ memcheck/mc_include.h       (working copy)
-@@ -395,6 +395,9 @@
- /* In leak check, show reachable-but-not-freed blocks?  default: NO */
- extern Bool MC_(clo_show_reachable);
- 
-+/* In leak check, show possibly-lost blocks?  default: YES */
-+extern Bool MC_(clo_show_possible);
-+
- /* Assume accesses immediately below %esp are due to gcc-2.96 bugs.
-  * default: NO */
- extern Bool MC_(clo_workaround_gcc296_bugs);
-Index: memcheck/mc_leakcheck.c
-===================================================================
---- memcheck/mc_leakcheck.c     (revision 10880)
-+++ memcheck/mc_leakcheck.c     (working copy)
-@@ -845,7 +845,8 @@
-       print_record = is_full_check &&
-                      ( MC_(clo_show_reachable) ||
-                        Unreached == lr->key.state || 
--                       Possible  == lr->key.state );
-+                       ( MC_(clo_show_possible) && 
-+                         Possible  == lr->key.state ) );
-       // We don't count a leaks as errors with --leak-check=summary.
-       // Otherwise you can get high error counts with few or no error
-       // messages, which can be confusing.  Also, you could argue that