Remove ICS and Holo themes. Remove most png keyboard resources, replacing with xml shapes and colors

This commit is part of a large scale change to fix errorprone
errors that have been downgraded to warnings in the android
source tree, so that they can be promoted to errors again.
The full list of changes include the following, but not all
will be present in any one individual commit:

BadAnnotationImplementation
BadShiftAmount
BanJNDI
BoxedPrimitiveEquality
ComparableType
ComplexBooleanConstant
CollectionToArraySafeParameter
ConditionalExpressionNumericPromotion
DangerousLiteralNull
DoubleBraceInitialization
DurationFrom
DurationTemporalUnit
EmptyTopLevelDeclaration
EqualsNull
EqualsReference
FormatString
FromTemporalAccessor
GetClassOnAnnotation
GetClassOnClass
HashtableContains
IdentityBinaryExpression
IdentityHashMapBoxing
InstantTemporalUnit
InvalidTimeZoneID
InvalidZoneId
IsInstanceIncompatibleType
JUnitParameterMethodNotFound
LockOnBoxedPrimitive
MathRoundIntLong
MislabeledAndroidString
MisusedDayOfYear
MissingSuperCall
MisusedWeekYear
ModifyingCollectionWithItself
NoCanIgnoreReturnValueOnClasses
NonRuntimeAnnotation
NullableOnContainingClass
NullTernary
OverridesJavaxInjectableMethod
ParcelableCreator
PeriodFrom
PreconditionsInvalidPlaceholder
ProtoBuilderReturnValueIgnored
ProtoFieldNullComparison
RandomModInteger
RectIntersectReturnValueIgnored
ReturnValueIgnored
SelfAssignment
SelfComparison
SelfEquals
SizeGreaterThanOrEqualsZero
StringBuilderInitWithChar
TreeToString
TryFailThrowable
UnnecessaryCheckNotNull
UnusedCollectionModifiedInPlace
XorPower

See https://errorprone.info/bugpatterns for more
information on the checks.

Bug: 253827323
Test: m RUN_ERROR_PRONE=true javac-check
Change-Id: I454a105ae82484a2d19aff1808e8d9dd55ba64f4

The ArrayEquals, ArrayHashCode, ArrayToString, and
ArraysAsListPrimitiveArray errorprone findings were
demoted from errors to warnings. Fix existing
occurrences of them so they can be made errors again.

Bug: 242630963
Test: RUN_ERROR_PRONE=true m javac-check
Change-Id: I689397a7196277de3fd301836e72f7555e2036cb

Remove the showDictionaryAvailableNotification
method since there is no module use it.

Bug: 209479751
Test: presubmit
Change-Id: I4c88b4a2d0cb36761d9102ce35260f93303625d9

The keyboard key-press haptic feedback should follow the user
settings for "Touch feedback".

Bug: 185351540
Test: manual
Change-Id: I718d3bf15b1ef841a869a898038d0eca1eca78f0

With CL[1],[2] to migrate InputMethodService as the subclass of the new
introduced class WindowProviderService in S_V2, IME context resources
can be managed by associating the window container of IME window when
its display/window configuration changed.

So we can get rid of createDisplayContext logic from S_V2 with gated
by SDK version and refining the method of get IME context with
documentation to make it clear.

[1]: Ie565e30ed5dd3f2cfe27355a6dded76dc3adc14b
[2]: I64a1614f32d097785915f6105b1813a929e0fe32

Bug: 213118079
Bug: 133825283
Test: manual with below steps
 1) adb install -r EditTextVariations.apk
 2) tapas LatinIME
 3) make
 4) adb install -r out/target/product/generic/system/app/LatinIME/\
        LatinIME.apk
 5) adb shell ime enable com.android.inputmethod.latin/.LatinIME
 6) adb shell ime set com.android.inputmethod.latin/.LatinIME
 5) Enable screen auto-rotation
 7) Launch EditTextVariations from launcher's shortcut
 8) Tap the first EditText field to show IME
 9) Rotate the device to the landscape mode
 10) Expect the IME should not be shrunk

Change-Id: If2cc1c5bdb257a9c0af653fa7157cf781a90bf1d