You can probably remove the option to play those lines in the sounds.xml file
For example
<SoundDataNode name="traderdislikegreeting"> <AudioSource name="Sounds/AudioSource_VO"/>
<Noise ID="1" noise="7" time="3" muffled_when_crouched="0.5"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_01"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_02"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_03"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_04"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_05"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_06"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_07"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_08"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_09"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_10"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_11"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_12"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_13"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_14"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_15"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_16"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_15"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_16"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_17"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_18"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_19"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_20"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_21"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_22"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_23"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_24"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_25"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_26"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_27"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_28"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_29"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_30"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_31"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_32"/>
<AudioClip ClipName="Sounds/VO/Trader/Male/Dislike/trader_male_dislike_greeting_33"/>
<LocalCrouchVolumeScale value="1.0"/> <CrouchNoiseScale value="0.5"/> <NoiseScale value="1"/> <MaxVoices value="10"/> <MaxRepeatRate value="1.111"/> </SoundDataNode>
If you know which greeting has the object able words for you, you can just write up a small modlet to strip that audio clip from the list.
Thing is, would take a lot of time and effort to figure out which one is which. Easiest way is to do each one at a time (as in strip all of them and keep only one). Then check it in game. Though someone might have an easier way of sorting through the various sound clips?