revert(3p/git): Revert merge of git upstream at v2.26.2

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232, reversing
changes made to f2b211131f.

third_party/git/t/t4211/sha256/expect.move-support-f

@@ -1,80 +0,0 @@
-commit 4f7a58195a92c400e28a2354328587f1ff14fb77f5cf894536f17ccbc72931b9
-Author: Thomas Rast <trast@student.ethz.ch>
-Date:   Thu Feb 28 10:49:50 2013 +0100
-
-    another simple change
-
-diff --git a/b.c b/b.c
---- a/b.c
-+++ b/b.c
-@@ -4,9 +4,9 @@
- long f(long x)
- {
- 	int s = 0;
- 	while (x) {
--		x >>= 1;
-+		x /= 2;
- 		s++;
- 	}
- 	return s;
- }
-
-commit ccf97b9878189c40a981da50b15713bb80a35755326320ec80900caf22ced46f
-Author: Thomas Rast <trast@student.ethz.ch>
-Date:   Thu Feb 28 10:45:16 2013 +0100
-
-    touch both functions
-
-diff --git a/a.c b/a.c
---- a/a.c
-+++ b/a.c
-@@ -3,9 +3,9 @@
--int f(int x)
-+long f(long x)
- {
- 	int s = 0;
- 	while (x) {
- 		x >>= 1;
- 		s++;
- 	}
- 	return s;
- }
-
-commit f6434acd34260a6c9f61e96d96bf9a323d330561df5b1ca2631104f82026dfed
-Author: Thomas Rast <trast@student.ethz.ch>
-Date:   Thu Feb 28 10:44:55 2013 +0100
-
-    change f()
-
-diff --git a/a.c b/a.c
---- a/a.c
-+++ b/a.c
-@@ -3,8 +3,9 @@
- int f(int x)
- {
- 	int s = 0;
- 	while (x) {
- 		x >>= 1;
- 		s++;
- 	}
-+	return s;
- }
-
-commit 1dd7e9b2b1699324b53b341e728653b913bc192a14dfea168c5b51f2b3d03592
-Author: Thomas Rast <trast@student.ethz.ch>
-Date:   Thu Feb 28 10:44:48 2013 +0100
-
-    initial
-
-diff --git a/a.c b/a.c
---- /dev/null
-+++ b/a.c
-@@ -0,0 +3,8 @@
-+int f(int x)
-+{
-+	int s = 0;
-+	while (x) {
-+		x >>= 1;
-+		s++;
-+	}
-+}