Revert "enable Java build for PDK build - Highest LOCAL_SDK_VERSION forced for package build / java library build - uses prebuilt tools for PDK"

This reverts commit 9283168e61a4991d39a6c599627eefc45d41c099
diff --git a/core/java.mk b/core/java.mk
index 4005ce3..b302c9f 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -3,14 +3,6 @@
 # LOCAL_MODULE_CLASS
 # all_res_assets
 
-ifeq ($(TARGET_BUILD_PDK),true)
-# LOCAL_SDK not defined or set to current
-ifeq ($(filter-out current,$(LOCAL_SDK_VERSION)),)
-LOCAL_SDK_VERSION := $(PDK_BUILD_SDK_VERSION)
-endif
-endif #PDK
-
-
 # Make sure there's something to build.
 # It's possible to build a package that doesn't contain any classes.
 ifeq (,$(strip $(LOCAL_SRC_FILES)$(all_res_assets)$(LOCAL_STATIC_JAVA_LIBRARIES)))
diff --git a/core/pdk_config.mk b/core/pdk_config.mk
index 8e3f1bb..98f34a5 100644
--- a/core/pdk_config.mk
+++ b/core/pdk_config.mk
@@ -64,11 +64,3 @@
 ALL_PDK_FUSION_FILES := $(addprefix $(PRODUCT_OUT)/, $(_pdk_fusion_file_list))
 
 endif
-
-ifeq ($(TARGET_BUILD_PDK),true)
-
-# SDK used for Java build under PDK
-PDK_BUILD_SDK_VERSION := $(lastword $(TARGET_AVAILABLE_SDK_VERSIONS))
-$(info PDK Build uses SDK $(PDK_BUILD_SDK_VERSION))
-
-endif # BUILD_PDK
diff --git a/tools/Android.mk b/tools/Android.mk
index fe29e2b..92603f5 100644
--- a/tools/Android.mk
+++ b/tools/Android.mk
@@ -17,7 +17,7 @@
 LOCAL_PATH := $(call my-dir)
 
 # If we're building only unbundled apps, this is the only tool we need.
-ifneq (,$(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)))
+ifneq ($(TARGET_BUILD_APPS),)
 include $(LOCAL_PATH)/signapk/Android.mk
 else
 include $(call first-makefiles-under,$(LOCAL_PATH))