drop no-longer present release_config_map.mk

vendor/google/release/go_devices/release_config_map.mk no longer exists

Bug: 342265627
Bug: 328495189
Flag: build.RELEASE_BUILD_FLAGS_IN_PROTOBUF
Test: manual, TH
Ignore-AOSP-First: resolving automerger conflict
Merged-In: Ia3ae6787183208a216dc4ea26c2fc3a9e4f56054
Change-Id: Ia3ae6787183208a216dc4ea26c2fc3a9e4f56054