wilco_dtc: rename diagnostics to wilco_dtc user and group

BUG=b:124423615
TEST=build
CQ-DEPEND=CL:1479610
CQ-DEPEND=CL:1479510

Change-Id: Ida64389a9c753e122fd68c90c1bc06854615bed4
Reviewed-on: https://chromium-review.googlesource.com/1491351
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Polina Bondarenko <pbond@chromium.org>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Reviewed-by: Trent Begin <tbegin@chromium.org>
diff --git a/profiles/base/accounts/group/diagnostics b/profiles/base/accounts/group/diagnostics
deleted file mode 100644
index 038039c..0000000
--- a/profiles/base/accounts/group/diagnostics
+++ /dev/null
@@ -1,3 +0,0 @@
-group:diagnostics
-gid:20120
-users:diagnostics
diff --git a/profiles/base/accounts/group/wilco_dtc b/profiles/base/accounts/group/wilco_dtc
new file mode 100644
index 0000000..d0ef8b9
--- /dev/null
+++ b/profiles/base/accounts/group/wilco_dtc
@@ -0,0 +1,3 @@
+group:wilco_dtc
+gid:20120
+users:wilco_dtc
diff --git a/profiles/base/accounts/user/diagnostics b/profiles/base/accounts/user/diagnostics
deleted file mode 100644
index 2dedc27..0000000
--- a/profiles/base/accounts/user/diagnostics
+++ /dev/null
@@ -1,6 +0,0 @@
-user:diagnostics
-uid:20120
-gid:20120
-gecos:User for telemetry and diagnostics services.
-home:/dev/null
-shell:/bin/false
diff --git a/profiles/base/accounts/user/wilco_dtc b/profiles/base/accounts/user/wilco_dtc
new file mode 100644
index 0000000..2ea764e
--- /dev/null
+++ b/profiles/base/accounts/user/wilco_dtc
@@ -0,0 +1,6 @@
+user:wilco_dtc
+uid:20120
+gid:20120
+gecos:User for wilco_dtc and wilco_dtc support services.
+home:/dev/null
+shell:/bin/false