Revert "init: change --depth default to 1 for manifest repo"

This reverts commit 076d54652e0025e1360f66e483926477b910b02e.

Reason for revert: crbug.com/gerrit/16358

Change-Id: I2970eb50677cca69786f71edffe4aa5271cf139f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/349834
Reviewed-by: Sam Saccone <samccone@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Xin Li <delphij@google.com>

man/repo-gitc-init.1

diff --git a/man/repo-gitc-init.1 b/man/repo-gitc-init.1
index d6ef5ab..88136de 100644
--- a/man/repo-gitc-init.1
+++ b/man/repo-gitc-init.1
@@ -45,10 +45,6 @@
 \fB\-\-standalone\-manifest\fR
 download the manifest as a static file rather then
 create a git checkout of the manifest repo
-.TP
-\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
-create a shallow clone of the manifest repo with given
-depth; see git clone (default: 1)
 .SS Manifest (only) checkout options:
 .TP
 \fB\-\-current\-branch\fR

man/repo-init.1

diff --git a/man/repo-init.1 b/man/repo-init.1
index 0d45bf7..32b3ea1 100644
--- a/man/repo-init.1
+++ b/man/repo-init.1
@@ -45,10 +45,6 @@
 \fB\-\-standalone\-manifest\fR
 download the manifest as a static file rather then
 create a git checkout of the manifest repo
-.TP
-\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
-create a shallow clone of the manifest repo with given
-depth; see git clone (default: 1)
 .SS Manifest (only) checkout options:
 .TP
 \fB\-c\fR, \fB\-\-current\-branch\fR

repo

diff --git a/repo b/repo
index e6ef93d..7491e3a 100755
--- a/repo
+++ b/repo
@@ -316,9 +316,6 @@
                    help='download the manifest as a static file '
                         'rather then create a git checkout of '
                         'the manifest repo')
-  group.add_option('--manifest-depth', type='int', default=1, metavar='DEPTH',
-                   help='create a shallow clone of the manifest repo with '
-                        'given depth; see git clone (default: %default)')
 
   # Options that only affect manifest project, and not any of the projects
   # specified in the manifest itself.

subcmds/init.py

diff --git a/subcmds/init.py b/subcmds/init.py
index 0c979cd..cae0e34 100644
--- a/subcmds/init.py
+++ b/subcmds/init.py
@@ -109,10 +109,6 @@
     Args:
       opt: options from optparse.
     """
-    # Normally this value is set when instantiating the project, but the
-    # manifest project is special and is created when instantiating the
-    # manifest which happens before we parse options.
-    self.manifest.manifestProject.clone_depth = opt.manifest_depth
     if not self.manifest.manifestProject.Sync(
         manifest_url=opt.manifest_url,
         manifest_branch=opt.manifest_branch,