[OpenJDK 2D-Dev] RFR: 8209548: Unused and incorrect calls to FT_Get_Char_Index

[Phil Race]

bug: https://bugs.openjdk.java.net/browse/JDK-8209548
webrev: http://cr.openjdk.java.net/~prr/8209548/

Clean up of some pointless and incorrect code in freetypescaler.c

-phil