Fix trend watch containers leftover issues

discussed in https://github.com/AdguardTeam/AdguardFilters/pull/239250#discussion_r3862682639

AnnoyancesFilter/Other/sections/self-promo.txt

@@ -217,7 +217,6 @@ www.kinopoisk.ru##footer > div:has(> div > div[data-testid="kp-ui.amediateka-foo
 baseball.yahoo.co.jp##.bb-centerColumn > #inf:has(> .sn-modNotice > .sn-notice--annapurna)
 nikkei.com##body > div[class^="adsArea_"] > section[class] > div[class] > div[class^="item_"]:has(> a[href*="?utm_source="])
 nikkei.com##div[data-rn-track="hub-ad-recommend"]:has(> a[href*="?utm_source="])
-nikkei.com##div[class^="trendWatchContainer_"]
 secretflying.com##a[id$="-aside-vad"][href^="/plans"]
 secretflying.com##.dsktp-only:has(> a[href^="/plans"] > img)
 diesachsen.de,diethueringer.de##section > .container > .row > div:has(> .blog-style1 > .blog-img > a[href^="/sponsored-content/"])

JapaneseFilter/sections/specific.txt

@@ -61,6 +61,7 @@ gundamlog.com###more > iframe[src^="https://richlink.blogsys.jp"]
 ! NOTE: Specific rules
 !
 bengo4.com##div[class^="p-static-banner-area"]
+nikkei.com##div[class^="trendWatch"]
 ||bengo4.com/img/topics/article/banner/static-banner-ads/
 momon-ga.com##.pop--excl:has(div[id^="bnc_ad"])
 posfie.com,togetter.com##.amazon_bulk_box