[gcc r15-7556] libstdc++: Remove unused header from <bits/shared_ptr_base.h>

[Jonathan Wakely]

https://gcc.gnu.org/g:7698d2079ba7eb37b0cd7f7bb04f7c956da9db08

commit r15-7556-g7698d2079ba7eb37b0cd7f7bb04f7c956da9db08
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Feb 13 10:33:50 2025 +0000

    libstdc++: Remove unused header from <bits/shared_ptr_base.h>
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/shared_ptr_base.h: Do not include <bit>.

Diff:
---
 libstdc++-v3/include/bits/shared_ptr_base.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libstdc++-v3/include/bits/shared_ptr_base.h b/libstdc++-v3/include/bits/shared_ptr_base.h
index 0e60408cc8db..053857b4c29f 100644
--- a/libstdc++-v3/include/bits/shared_ptr_base.h
+++ b/libstdc++-v3/include/bits/shared_ptr_base.h
@@ -61,7 +61,6 @@
 #include <ext/atomicity.h>
 #include <ext/concurrence.h>
 #if __cplusplus >= 202002L
-# include <bit>          // __bit_floor
 # include <compare>
 # include <bits/align.h> // std::align
 # include <bits/stl_uninitialized.h>