[gcc r14-3778] Revert "contrib/gcc-changelog: Check whether revert-commit exists"

[Tobias Burnus]

https://gcc.gnu.org/g:fbbd9001e9b6f2c59b542cc53a8f9183514091ce

commit r14-3778-gfbbd9001e9b6f2c59b542cc53a8f9183514091ce
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Thu Sep 7 12:40:57 2023 +0200

    Revert "contrib/gcc-changelog: Check whether revert-commit exists"
    
    This reverts commit ffffffffffffffffffffffffffffffffffffffff.

Diff:
---
 contrib/gcc-changelog/git_commit.py | 20 +++++---------------
 contrib/gcc-changelog/git_email.py  |  3 ++-
 2 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/contrib/gcc-changelog/git_commit.py b/contrib/gcc-changelog/git_commit.py
index 9110317a759a..4f3131021f21 100755
--- a/contrib/gcc-changelog/git_commit.py
+++ b/contrib/gcc-changelog/git_commit.py
@@ -329,15 +329,11 @@ class GitCommit:
                 self.revert_commit = m.group('hash')
                 break
         if self.revert_commit:
-            # The following happens for get_email.py:
-            if not self.commit_to_info_hook:
-                self.warnings.append(f"Invoked script can not obtain info about "
-                                     f"reverted commits such as '{self.revert_commit}'")
-                return
             self.info = self.commit_to_info_hook(self.revert_commit)
-            if not self.info:
-                self.errors.append(Error('Cannot find to-be-reverted commit', self.revert_commit))
-                return
+
+        # The following happens for get_email.py:
+        if not self.info:
+            return
 
         self.check_commit_email()
 
@@ -800,18 +796,12 @@ class GitCommit:
                 orig_date = self.original_info.date
                 current_timestamp = orig_date.strftime(DATE_FORMAT)
             elif self.cherry_pick_commit:
-                info = (self.commit_to_info_hook
-                        and self.commit_to_info_hook(self.cherry_pick_commit))
+                info = self.commit_to_info_hook(self.cherry_pick_commit)
                 # it can happen that it is a cherry-pick for a different
                 # repository
                 if info:
                     timestamp = info.date.strftime(DATE_FORMAT)
                 else:
-                    if self.commit_to_info_hook:
-                        self.warnings.append(f"Cherry-picked commit not found: '{self.cherry_pick_commit}'")
-                    else:
-                        self.warnings.append(f"Invoked script can not obtain info about "
-                                             f"cherry-picked commits such as '{self.revert_commit}'")
                     timestamp = current_timestamp
             elif not timestamp or use_commit_ts:
                 timestamp = current_timestamp
diff --git a/contrib/gcc-changelog/git_email.py b/contrib/gcc-changelog/git_email.py
index 93808dfabb6e..49f41f2ec995 100755
--- a/contrib/gcc-changelog/git_email.py
+++ b/contrib/gcc-changelog/git_email.py
@@ -89,7 +89,8 @@ class GitEmail(GitCommit):
                 t = 'M'
             modified_files.append((target if t != 'D' else source, t))
         git_info = GitInfo(None, date, author, message, modified_files)
-        super().__init__(git_info, commit_to_info_hook=None)
+        super().__init__(git_info,
+                         commit_to_info_hook=lambda x: None)
 
 
 def show_help():