Revert "pw_log_fuchsia: Add syslog dep to pw_log_fuchsia"

This reverts commit 42cff57.

Reason for revert: Causes bt-host creep budget to be exceeded in roller, thereby breaking the roller.

Original change's description:
> pw_log_fuchsia: Add syslog dep to pw_log_fuchsia
>
> This fixes bt_hci_virtual missing libsyslog.so.
>
> Change-Id: Icda8ffe16c05822f41d99ce3a7271752b51cf5ea
> Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/238552
> Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
> Reviewed-by: Chase Latta <chaselatta@google.com>
> Docs-Not-Needed: Ben Lawson <benlawson@google.com>
> Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
> Pigweed-Auto-Submit: Ben Lawson <benlawson@google.com>
> Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>

TBR=pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com,android-build-ayeaye@system.gserviceaccount.com,benlawson@google.com,auto-submit@pigweed-service-accounts.iam.gserviceaccount.com,chaselatta@google.com

Change-Id: Ia78ed29ca8abf0638e7b6a71079104c237aaf00e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/238513
Reviewed-by: Chase Latta <chaselatta@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Ben Lawson <benlawson@google.com>
Reviewed-by: Ben Lawson <benlawson@google.com>

pw_log_fuchsia/BUILD.bazel

@@ -34,7 +34,6 @@ cc_library(
         "@fuchsia_sdk//fidl/fuchsia.logger:fuchsia.logger_cpp",
         "@fuchsia_sdk//pkg/async-cpp",
         "@fuchsia_sdk//pkg/component_incoming_cpp",
-        "@fuchsia_sdk//pkg/syslog",
         "@fuchsia_sdk//pkg/syslog_structured_backend",
         "@pigweed//pw_log:facade",
         "@pigweed//pw_preprocessor",