Calculator: update arity lib to v2.1.2 to fix log.

Bug 2464487.

Author: Mihai Preda

Diff for: Android.mk

@@ -31,7 +31,7 @@ include $(BUILD_PACKAGE)
 ##################################################
 include $(CLEAR_VARS)
 
-LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := libarity:arity-2.0.2.jar
+LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := libarity:arity-2.1.2.jar
 include $(BUILD_MULTI_PREBUILT)
 
 # Use the folloing include to make our test apk.

Diff for: arity-2.0.2.jar

@@ -50,13 +50,6 @@ class Logic {
 
     Logic(Context context, History history, CalculatorDisplay display, Button equalButton) {
         mErrorString = context.getResources().getString(R.string.error);
-        try {
-            // in calculator we use log() for base-10,
-            // unlike in arity-lib where log() is natural logarithm
-            mSymbols.define(mSymbols.compileWithName("log(x)=log10(x)"));
-        } catch (SyntaxException e) {
-            throw new Error("" + e); //never
-        }
         mHistory = history;
         mDisplay = display;
         mDisplay.setLogic(this);