Add an empty CleanSpec.mk
Add an empty CleanSpec.mk

Change-Id: Ifbb66d6b6fbc6c547018fd4e2826e5039737a3d5

UBERMALLOW/external_guava,PPCDroid/external-guava,android-ia/platform_external_guava,codesplice/platform_external_guava,Omegaphora/external_guava,PurityROM/platform_external_guava,cubieboard/openbox_external_guava,xin3liang/platform_external_guava,barrmy/external_guava,bhargavkumar040/android-source-browsing.platform--external--guava,TeamExodus/external_guava,AOKP/external_guava,ThirdProject/android_external_guava,codesplice/platform_external_guava,VRToxin-AOSP/android_external_guava,sdugit/guava_7025,VanirAOSP/external_guava,PPCDroid/external-guava,xhteam/external-guava,TurboROM/external_guava,ThirdProject/android_external_guava,AOSP-JF/platform_external_guava,ThangBK2009/android-source-browsing.platform--external--guava,CyanogenMod/android_external_guava,TurboROM/external_guava,DARKPOP/external_guava,yinquan529/platform-external-guava,geekboxzone/mmallow_external_guava,thiz11/platform_external_guava,bhargavkumar040/android-source-browsing.platform--external--guava,SaleJumper/android-source-browsing.platform--external--guava,VanirAOSP/external_guava,TeamExodus/external_guava,AOSP-JF-MM/platform_external_guava,rowboat/external-guava,cubieboard/openbox_external_guava,Omegaphora/external_guava,barrmy/external_guava,thiz11/platform_external_guava,rowboat/external-guava,Evervolv/android_external_guava,geekboxzone/mmallow_external_guava,yinquan529/platform-external-guava,VRToxin-AOSP/android_external_guava,UBERMALLOW/external_guava,xin3liang/platform_external_guava,sdugit/guava_7025,xhteam/external-guava,omapzoom/platform-external-guava,omapzoom/platform-external-guava,geekboxzone/lollipop_external_guava,ThangBK2009/android-source-browsing.platform--external--guava,Pankaj-Sakariya/android-source-browsing.platform--external--guava,SaleJumper/android-source-browsing.platform--external--guava,DARKPOP/external_guava,AOSP-JF/platform_external_guava,PurityROM/platform_external_guava,AOKP/external_guava,CyanogenMod/android_external_guava,android-ia/platform_external_guava,TeamNyx/external_guava,Pankaj-Sakariya/android-source-browsing.platform--external--guava,AOSP-JF-MM/platform_external_guava,Evervolv/android_external_guava,geekboxzone/lollipop_external_guava