Delete equalizer.xml

data/effects/avfilter/equalizer.xml

-<!DOCTYPE kpartgui>
-<effect tag="avfilter.equalizer" type="audio">
-	<name>Audio Equalizer (avfilter)</name>
-	<description>Apply two-pole peaking equalization (EQ) filter</description>
-	<author>libavfilter</author>
-	<parameter type="constant" name="av.f" max="24000" min="0" default="500">
-		<name>Central Frequency</name>
-	</parameter>
-    <parameter type="list" name="av.t" default="q" paramlist="h;q;o;s;k">>
-		<name>Width Type</name>
-        <paramlistdisplay>Hertz,Q-Factor,Octave,Slope,None</paramlistdisplay>
-	</parameter>
-        <parameter type="constant" name="av.w" max="24000" min="1" default="100">
-		<name>Band Width</name>
-	</parameter>
-    <parameter type="constant" name="av.g" max="600" min="-600" default="0" decimals="2">
-		<name>Gain</name>
-	</parameter>
-    <parameter type="constant" name="av.m" max="1" min="0" default="1" decimals="2">
-		<name>Mix</name>
-	</parameter>
-</effect>
-