Remove no op SdkSuppress and non-applicable tests

minSdkVersion was bumped to 19 in November.
As a result, SdkSuppress(minSdk in (16..19)) doesn't do anything,
so it can be safely removed.
Similarly, tests annotated with SdkSuppress(maxSdkVersion = (16..18))
aren't needed, because they are ran only on non-supported api versions.

Test: refactoring
Change-Id: I2a1105908b28190f3d39443000cbaff951f92e9e
63 files changed