Revert "Build: Disable goexperiments in our builds due to issue prese…

…nt in Go 1.20.5 (algorand#5484)"

This reverts commit 0824e4a.

.circleci/config.yml

@@ -601,7 +601,6 @@ commands:
             export PACKAGE_NAMES=$(echo $PACKAGES | tr -d '\n')
             export PARTITION_TOTAL=${CIRCLE_NODE_TOTAL}
             export PARTITION_ID=${CIRCLE_NODE_INDEX}
-            export GOEXPERIMENT="none"
             gotestsum --format standard-verbose --junitfile << parameters.result_path >>/<< parameters.result_subdir >>/${CIRCLE_NODE_INDEX}/results.xml --jsonfile << parameters.result_path >>/<< parameters.result_subdir >>/${CIRCLE_NODE_INDEX}/testresults.json -- --tags "sqlite_unlock_notify sqlite_omit_load_extension" << parameters.short_test_flag >> -race -timeout 1h -coverprofile=coverage.txt -covermode=atomic -p 1 $PACKAGE_NAMES
       - store_artifacts:
           path: << parameters.result_path >>

Makefile

@@ -77,11 +77,6 @@ ifeq ($(SHORT_PART_PERIOD), 1)
 export SHORT_PART_PERIOD_FLAG := -s
 endif
 
-# Disable go experiments during build as of go 1.20.5 due to
-# https://github.com/golang/go/issues/60825
-# Likely fix: https://go-review.googlesource.com/c/go/+/503937/6/src/runtime/race_arm64.s
-export GOEXPERIMENT=none
-
 GOTAGS      := --tags "$(GOTAGSLIST)"
 GOTRIMPATH	:= $(shell GOPATH=$(GOPATH) && go help build | grep -q .-trimpath && echo -trimpath)