In Matt Moore’s first season with the Giants, he pitched them to within an inning of a winner-take-all playoff game against the eventual World Series champs. In his second year, he statistically was the worst starter in the majors. Moore, 28, will not get a third year in San Francisco. The Giants traded him to the Texas Rangers on Friday night in their first significant move of the offseason, a case of financial addition by subtraction. The Giants will receive minor-league pitchers Sam Wolff, a 26-year-old who is out at least until June after flexor-tendon surgery in his right elbow, and Israel Cruz, a 20-year-old from Venezuela who has not pitched beyond rookie ball. In Matt Moore’s first season with the Giants, he pitched them to within an inning of a winner-take-all playoff game against the eventual World Series champs. In his second year, he statistically was the worst starter in the majors. Moore, 28, will not get a third year in San Francisco. The Giants traded him to the Texas Rangers on Friday night in their first significant move of the offseason, a case of financial addition by subtraction. The Giants will receive minor-league pitchers Sam Wolff, a 26-year-old who is out at least until June after flexor-tendon surgery in his right elbow, and Israel Cruz, a 20-year-old from Venezuela who has not pitched beyond rookie ball. They are not considered blue-chip prospects, but they throw hard and the club wants to stock its system with more strikeout pitchers to keep up with a trend toward relievers who can blow a hitter’s doors off. The Giants also will send $750,000 in international bonus slot money to Texas in the deal, which The Chronicle first reported Friday afternoon. The trade will save the Giants $9 million in Moore’s 2017 salary, giving them greater flexibility to sign or trade for the outfielders and third baseman they need while attempting to stay below the $197 million luxury-tax payroll threshold. The Giants knew they would have to move big-league players to achieve those goals. Denard Span and his $11 million salary would have gone to Miami in the proposed Giancarlo Stanton deal.