As much as I know it can't be removed, and it is true for every faction's scout.
You can change that by downloading
this and putting the file you want to change into the correct Convert_ folder, this one is using the ConvertEntity folder. After doing that you use the _Entity_BIN-2-TXT.bat executable to make it into a legible text file. Here is the Remnant_Mu.entity:
TXT
entityType "Frigate"
defaultAutoAttackRange "GravityWell"
defaultAutoAttackOn TRUE
prefersToFocusFire TRUE
usesFighterAttack FALSE
autoJoinFleetDefault TRUE
canBomb FALSE
typeCount 2
frigateRoleType "Scout"
frigateRoleType "ResourceCapturer"
statCountType "FrigateScout"
mainViewIcon "MAINVIEWICON_MU"
picture "HUDICON_MU2"
NameStringID "IDS_FRIGATE_MU2_NAME"
DescriptionStringID "IDS_FRIGATE_MU2_DESCRIPTION"
counterDescriptionStringID "IDS_COUNTERDESC_FRIGATE_LIGHT"
basePrice
credits 240.000000
metal 50.000000
crystal 0.000000
slotCount 1.000000
BuildTime 15.000000
hasLevels FALSE
ExperiencePointsForDestroying 10.000000
MaxHullPoints 600.000000
MaxShieldPoints 1200.000000
HullPointRestoreRate 1.000000
ShieldPointRestoreRate 20.000000
BaseArmorPoints 2.000000
maxMitigation 0.600000
Prerequisites
NumResearchPrerequisites 0
RequiredFactionNameID ""
RequiredCompletedResearchSubjects 0
numRandomDebrisLarge 0
numRandomDebrisSmall 5
numSpecificDebris 0
armorType "Medium"
hudIcon "HUDICON_MU2"
smallHudIcon "HUDICONSMALL_MILITARY_SUPPORT"
infoCardIcon "HUDICONSMALL_MILITARY_SUPPORT"
minZoomDistanceMult 4.000000
NumWeapons 1
Weapon
WeaponType "Projectile"
damageEnums
AttackType "ANTIVERYLIGHT"
DamageAffectType "AFFECTS_SHIELDS_AND_HULL"
DamageApplyType "BACKLOADED"
DamageType "ENERGY"
WeaponClassType "AUTOCANNON"
DamagePerBank:FRONT 10.000000
DamagePerBank:BACK 0.000000
DamagePerBank:LEFT 0.000000
DamagePerBank:RIGHT 0.000000
Range 4000.000000
PreBuffCooldownTime 2.000000
CanFireAtFighter TRUE
SynchronizedTargeting FALSE
PointStaggerDelay 0.900000
TravelSpeed 2000.000000
Duration 0.000000
fireConstraintType "CanAlwaysFire"
WeaponEffects
weaponType "Projectile"
burstCount 2
burstDelay 0.200000
fireDelay 0.000000
muzzleEffectName "MuzzleGreen_Single_Large"
muzzleSoundMinRespawnTime 0.100000
muzzleSounds
soundCount 3
sound "WEAPON_CORVETT_LASER_MUZZLE"
sound "WEAPON_CORVETT_LASER_MUZZLE_ALT1"
sound "WEAPON_CORVETT_LASER_MUZZLE_ALT2"
hitEffectName "LaserImpact"
hitHullEffectSounds
soundCount 1
sound "WEAPONIMPACT_PHYSICALHEAVY_HITHULL"
hitShieldsEffectSounds
soundCount 1
sound "WEAPONIMPACT_GENERICHEAVY_HITSHIELDS"
projectileTravelEffectName "LaserGreen_Quad"
m_weaponIndexForRange 0
firingAlignmentType "Default"
TargetCountPerBank:FRONT 1
TargetCountPerBank:BACK 0
TargetCountPerBank:LEFT 0
TargetCountPerBank:RIGHT 0
canOnlyTargetStructures FALSE
hasWeaponLevels FALSE
mass 2000.000000
ShieldMeshName "IR_Mu"
renderShield TRUE
maxAccelerationLinear 200.000000
maxAccelerationStrafe 10.000000
maxDecelerationLinear 500.000000
maxAccelerationAngular 3.700000
maxDecelerationAngular 9.999996
maxSpeedLinear 1625.000000
maxRollRate 2.000000
maxRollAngle 35.000000
squadTypeEntityDef:0 ""
squadAntiMatterCost:0 0.000000
squadTypeEntityDef:1 ""
squadAntiMatterCost:1 0.000000
squadTypeEntityDef:2 ""
squadAntiMatterCost:2 0.000000
squadTypeEntityDef:3 ""
squadAntiMatterCost:3 0.000000
maxNumCommandPoints 0
NumSoundsFor:ONATTACKORDERISSUED 3
SoundID "EVENTIR_MUATTACKTWO"
SoundID "EVENTIR_MUATTACKTHREE"
SoundID "EVENTIR_MUATTACKONE"
NumSoundsFor:ONCREATION 1
SoundID "EVENTIR_MUSELECTONE"
NumSoundsFor:ONGENERALORDERISSUED 3
SoundID "EVENTIR_MUMOVETWO"
SoundID "EVENTIR_MUMOVETHREE"
SoundID "EVENTIR_MUMOVEONE"
NumSoundsFor:ONSELECTED 3
SoundID "EVENTIR_MUSELECTONE"
SoundID "EVENTIR_MUSELECTTWO"
SoundID "EVENTIR_MUSELECTTHREE"
NumSoundsFor:ONSTARTPHASEJUMP 1
SoundID "EVENTIR_MUMOVETWO"
MeshNameInfoCount 1
MeshNameInfo
meshName "IR_mu"
criteriaType "None"
meshNameIncreasedEffectName ""
meshNameDecreasedEffectName ""
ExhaustParticleSystemName ""
ExplosionName "Frigate1"
HyperspaceChargingSoundID "HYPERSPACE_CHARGEUP"
HyperspaceTravelSoundID "HYPERSPACE_TRAVEL"
EngineSoundID "ENGINE_TECHCAPITALSHIP"
ability:0 "AbilityExplore"
ability:1 "AbilityCaptureNeutralEntity"
ability:2 ""
ability:3 ""
ability:4 ""
MaxAntiMatter 0.000000
AntiMatterRestoreRate 0.500000
cargoType "Invalid"
maxCargoCapacity 0.000000
formationRank 0
minShadow 0.100000
maxShadow 0.800000
allegianceDecreasePerRoundtrip 0.000000
Now what we want to change is this:
defaultAutoAttackOn TRUE
into this:
defaultAutoAttackOn FALSE
After that you use the _Entity_TXT-2-BIN.bat executable to change it back into the format the game can parse. Then you replace the original file with the altered one in its directory. Remnant_Mu.entity would be copied back into the GameInfo folder
As an aside I personally use Notepad++ because of its handy features.