Remove MODULE_LICENSE_APL from tradefederation/core

Repositories containing third-party code need a METADATA and a
license_type. Repositories containing only first-party code no longer
need a MODULE_LICENSE_* file.

Bug: 68860345
Bug: 69058154
Bug: 151953481

Test: no code changes

Exempt-From-Owner-Approval: janitorial work

Change-Id: I85127ebf0448fb36161b4971cf20c93aa5832464
diff --git a/res/apks/contentprovider/MODULE_LICENSE_APL b/res/apks/contentprovider/MODULE_LICENSE_APL
deleted file mode 100644
index e69de29..0000000
--- a/res/apks/contentprovider/MODULE_LICENSE_APL
+++ /dev/null
diff --git a/res/apks/telephonyutil/MODULE_LICENSE_APL b/res/apks/telephonyutil/MODULE_LICENSE_APL
deleted file mode 100644
index e69de29..0000000
--- a/res/apks/telephonyutil/MODULE_LICENSE_APL
+++ /dev/null
diff --git a/res/apks/wifiutil/MODULE_LICENSE_APL b/res/apks/wifiutil/MODULE_LICENSE_APL
deleted file mode 100644
index e69de29..0000000
--- a/res/apks/wifiutil/MODULE_LICENSE_APL
+++ /dev/null