revert git to 2.24.1

Bug: 1070694, b/154543469
Change-Id: I5099e3bb8c1aa9d3003d82e7dbb545fc75a1f749
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2157801
Reviewed-by: Anthony Polito <apolito@google.com>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Auto-Submit: Anthony Polito <apolito@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>

bootstrap/manifest.txt

@@ -24,4 +24,4 @@ infra/3pp/tools/cpython/${platform} version:2.7.17.chromium.22
 infra/3pp/tools/cpython3/${os}-${arch} version:3.8.0.chromium.8
 
 @Subdir git
-infra/3pp/tools/git/${os}-${arch} version:2.26.1.chromium.6
+infra/3pp/tools/git/${os}-${arch} version:2.24.1.chromium.5

bootstrap/manifest_bleeding_edge.txt

@@ -24,4 +24,4 @@ infra/3pp/tools/cpython/${platform} version:2.7.17.chromium.22
 infra/3pp/tools/cpython3/${os}-${arch=amd64} version:3.8.0.chromium.8
 
 @Subdir git
-infra/3pp/tools/git/${os}-${arch} version:2.26.1.chromium.6
+infra/3pp/tools/git/${os}-${arch} version:2.24.1.chromium.5