Remove unused methods/tests

Signal/test/util/FunctionalUtilTest.m

@@ -38,15 +38,6 @@
     test([[(@[@1,@2]) filter:^(NSNumber* x) { return x.intValue == 2; }] isEqualToArray:(@[@2])]);
 }
 
--(void) testKeyedBy {
-	test([[@[] keyedBy:^id(id value) { return @true; }] isEqual:@{}]);
-	test([[@[@1] keyedBy:^id(id value) { return @true; }] isEqual:@{@true : @1}]);
-	testThrows(([(@[@1, @2]) keyedBy:^id(id value) { return @true; }]));
-	test([[(@[@1, @2]) keyedBy:^id(id value) { return value; }] isEqual:(@{@1 : @1, @2 : @2})]);
-	testThrows([(@[@1, @1, @2, @3, @5]) keyedBy:^id(NSNumber* value) { return @(value.intValue/2); }]);
-	test([[(@[@3, @5, @7, @11, @13]) keyedBy:^id(NSNumber* value) { return @(value.intValue/2); }] isEqual:(@{@1 : @3, @2 : @5, @3 : @7, @5 : @11, @6 : @13})]);
-}
-
 -(void) testGroupBy {
 	test([[@[] groupBy:^id(id value) { return @true; }] isEqual:@{}]);
 	test([[@[@1] groupBy:^id(id value) { return @true; }] isEqual:@{@true : @[@1]}]);

SignalServiceKit/src/Util/FunctionalUtil.h

@@ -10,16 +10,12 @@
 /// Returns true when all of the items in this array match the given predicate.
 - (bool)all:(int (^)(id item))predicate;
 
-/// Returns the first item in this array that matches the given predicate, or else returns nil if none match it.
-- (id)firstMatchingElseNil:(int (^)(id item))predicate;
-
 /// Returns an array of all the results of passing items from this array through the given projection function.
 - (NSArray *)map:(id (^)(id item))projection;
 
 /// Returns an array of all the results of passing items from this array through the given projection function.
 - (NSArray *)filter:(int (^)(id item))predicate;
 
-- (NSDictionary *)keyedBy:(id (^)(id))keySelector;
 - (NSDictionary *)groupBy:(id (^)(id value))keySelector;
 
 @end

SignalServiceKit/src/Util/FunctionalUtil.m

@@ -46,15 +46,6 @@
     }
     return true;
 }
-- (id)firstMatchingElseNil:(int (^)(id item))predicate {
-    tskit_require(predicate != nil);
-    for (id e in self) {
-        if (predicate(e)) {
-            return e;
-        }
-    }
-    return nil;
-}
 - (NSArray *)map:(id (^)(id item))projection {
     tskit_require(projection != nil);
 
@@ -76,18 +67,6 @@
     return r;
 }
 
-- (NSDictionary *)keyedBy:(id (^)(id value))keySelector {
-    tskit_require(keySelector != nil);
-
-    NSMutableDictionary *result = [NSMutableDictionary dictionary];
-
-    for (id value in self) {
-        result[keySelector(value)] = value;
-    }
-    tskit_require(result.count == self.count);
-
-    return result;
-}
 - (NSDictionary *)groupBy:(id (^)(id value))keySelector {
     tskit_require(keySelector != nil);