Editorial: Remove else clauses after early returns

See new ECMA-262 convention tc39/ecma262#3733

Author: ptomato

spec/calendar.html

@@ -118,8 +118,7 @@ <h1>
         1. Let _numberPart_ be ToZeroPaddedDecimalString(_monthNumber_, 2).
         1. If _isLeapMonth_ is *true*, then
           1. Return the string-concatenation of the code unit 0x004D (LATIN CAPITAL LETTER M), _numberPart_, and the code unit 0x004C (LATIN CAPITAL LETTER L).
-        1. Else,
-          1. Return the string-concatenation of the code unit 0x004D (LATIN CAPITAL LETTER M) and _numberPart_.
+        1. Return the string-concatenation of the code unit 0x004D (LATIN CAPITAL LETTER M) and _numberPart_.
       </emu-alg>
     </emu-clause>
   </emu-clause>

spec/timezone.html

@@ -432,12 +432,11 @@ <h1>
           1. Let _name_ be the source text matched by the |TimeZoneIANAName| Parse Node contained within _parseResult_.
           1. NOTE: _name_ is syntactically valid, but does not necessarily conform to <a href="https://data.iana.org/time-zones/theory.html#naming">IANA Time Zone Database naming guidelines</a> or correspond with an available named time zone identifier.
           1. Return Time Zone Identifier Parse Record { [[Name]]: CodePointsToString(_name_), [[OffsetMinutes]]: ~empty~ }.
-        1. Else,
-          1. Assert: _parseResult_ contains a |UTCOffset[~SubMinutePrecision]| Parse Node.
-          1. Let _offset_ be the source text matched by the |UTCOffset[~SubMinutePrecision]| Parse Node contained within _parseResult_.
-          1. Let _offsetNanoseconds_ be ! ParseDateTimeUTCOffset(CodePointsToString(_offset_)).
-          1. Let _offsetMinutes_ be _offsetNanoseconds_ / (60 × 10<sup>9</sup>).
-          1. Return Time Zone Identifier Parse Record { [[Name]]: ~empty~, [[OffsetMinutes]]: _offsetMinutes_ }.
+        1. Assert: _parseResult_ contains a |UTCOffset[~SubMinutePrecision]| Parse Node.
+        1. Let _offset_ be the source text matched by the |UTCOffset[~SubMinutePrecision]| Parse Node contained within _parseResult_.
+        1. Let _offsetNanoseconds_ be ! ParseDateTimeUTCOffset(CodePointsToString(_offset_)).
+        1. Let _offsetMinutes_ be _offsetNanoseconds_ / (60 × 10<sup>9</sup>).
+        1. Return Time Zone Identifier Parse Record { [[Name]]: ~empty~, [[OffsetMinutes]]: _offsetMinutes_ }.
       </emu-alg>
     </emu-clause>
   </emu-clause>