Make OSGi Declaritive Services optional

[msqr]

The OSGi metadata generated for the Ehcache jar mandates the use of Declarative Services with this output:

Require-Capability: osgi.extender;filter:="(&(osgi.extender=osgi.compo
 nent)(version>=1.3.0)(!(version>=2.0.0)))",osgi.ee;filter:="(&(osgi.e
 e=JavaSE)(version=1.8))"

However the use of Declarative Services is not required at runtime, and this Require-Capability metadata prevents Ehcache from loading in OSGi when a Declarative Services runtime is not present. Could this Require-Capability metadata be removed? For example by adding

instruction Constants.REMOVEHEADERS, 'Require-Capability'

to ehcache/build.gradle?