[registry][fuchsia_system_metrics] Remove deprecated CPU config

Related fuchsia changes: https://fuchsia-review.googlesource.com/c/fuchsia/+/367442

Bug: 40088

Change-Id: Iab62bafd19091eada7a6ba6c738b187719fc39ca
diff --git a/fuchsia/fuchsia_system_metrics/metrics.yaml b/fuchsia/fuchsia_system_metrics/metrics.yaml
index 528bda4..35b4c8f 100644
--- a/fuchsia/fuchsia_system_metrics/metrics.yaml
+++ b/fuchsia/fuchsia_system_metrics/metrics.yaml
@@ -113,46 +113,6 @@
     max_release_stage: GA
     expiration_date: "2020/01/17"
 
-#####################################################################
-# ****** WILL DEPRECATE. Use id 8 below instead. ******
-# fuchsia CPU% * 100 averaged over all cores taken per sec
-#
-# For every second, a syscall is made to fetch the CPU idle time for
-# each CPU core. With that,  we calculate the CPU% which is
-# (busy time / 1 sec * 100) for each core. Assuming all cores are
-# the same, we take the average CPU% over all cores.
-# Note that Cobalt only take integer input, so we further multiply the
-# average CPU% by 100 to get 2 decimal places.
-# We aggregate 60 data points before flushing them into Cobalt through
-# one FIDL call.
-# Note that we are using MEMORY_USAGE metric_type until CPU_USAGE is
-# avaiable.
-#####################################################################
-- id: 5
-  metric_name: fuchsia_cpu_percentage_experimental
-  metric_type: MEMORY_USAGE # TODO(CB-253) Change to CPU metric type when available
-  metric_dimensions:
-    - dimension: device_state
-      event_codes:
-        0: Unknown
-        1: Idle
-        2: Active
-  reports:
-      #####################################################################
-      # fuchsia_cpu_usage
-      #####################################################################
-    - report_name: fuchsia_cpu_percentage_histogram_experimental
-      id: 1375790990 # legacy long report_id
-      report_type: INT_RANGE_HISTOGRAM
-      system_profile_field: [BOARD_NAME, PRODUCT_NAME, ARCH, SYSTEM_VERSION, OS, CHANNEL]
-      int_buckets:
-        linear:
-          floor: 0
-          num_buckets: 100
-          step_size: 100 # We multiply CPU% by 100. So step size is 100.
-  meta_data:
-    max_release_stage: GA
-    expiration_date: "2020/10/25"
 
 #####################################################################
 # fuchsia_uptime