patches: move block_input fix to 0001 where pattern is introduced

The block_input/record_unwind_protect_void ordering fix and its
explanatory comment belong in 0001 (ns_ax_buffer_text), which is
where the pattern is first introduced.  Having the fragile pattern
visible across patches 0001-0007 invites review comments.

Remove the now-redundant block_input reordering hunk from 0008;
0001 already establishes the correct order with the comment.

patches/0001-ns-add-accessibility-base-classes-and-text-extractio.patch

@@ -200,7 +200,7 @@ index 88c9251c18..9d36de66f9 100644
  #include "systime.h"
  #include "character.h"
  #include "xwidget.h"
-@@ -7201,6 +7202,432 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
+@@ -7201,6 +7202,436 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
  }
  #endif
  
@@ -249,8 +249,12 @@ index 88c9251c18..9d36de66f9 100644
 +
 +  specpdl_ref count = SPECPDL_INDEX ();
 +  record_unwind_current_buffer ();
-+  record_unwind_protect_void (unblock_input);
++  /* block_input must precede record_unwind_protect_void (unblock_input):
++     if anything between SPECPDL_INDEX and block_input were to throw,
++     the unwind handler would call unblock_input without a matching
++     block_input, corrupting the input-blocking reference count.  */
 +  block_input ();
++  record_unwind_protect_void (unblock_input);
 +  if (b != current_buffer)
 +    set_buffer_internal_1 (b);
 +