diff --git a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
index 1c2b315095c..cecf44be2cd 100644
--- a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
+++ b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
@@ -278,11 +278,6 @@ QString CustomExecutableRunConfiguration::defaultDisplayName() const
         return tr("Run %1").arg(QDir::toNativeSeparators(rawExecutable()));
 }
 
-Abi CustomExecutableRunConfiguration::abi() const
-{
-    return Abi(); // return an invalid ABI: We do not know what we will end up running!
-}
-
 // Factory
 
 CustomExecutableRunConfigurationFactory::CustomExecutableRunConfigurationFactory() :
diff --git a/src/plugins/projectexplorer/customexecutablerunconfiguration.h b/src/plugins/projectexplorer/customexecutablerunconfiguration.h
index c8b9d8144b7..6abd0f3185e 100644
--- a/src/plugins/projectexplorer/customexecutablerunconfiguration.h
+++ b/src/plugins/projectexplorer/customexecutablerunconfiguration.h
@@ -45,7 +45,6 @@ public:
     /** Returns whether this runconfiguration ever was configured with an executable
      */
     bool isConfigured() const override;
-    Abi abi() const override;
     ConfigurationState ensureConfigured(QString *errorMessage) override;
 
     QString defaultDisplayName() const;
diff --git a/src/plugins/projectexplorer/runconfiguration.cpp b/src/plugins/projectexplorer/runconfiguration.cpp
index e6f0302bdf8..d5ec08471f7 100644
--- a/src/plugins/projectexplorer/runconfiguration.cpp
+++ b/src/plugins/projectexplorer/runconfiguration.cpp
@@ -310,17 +310,6 @@ QVariantMap RunConfiguration::toMap() const
     return map;
 }
 
-Abi RunConfiguration::abi() const
-{
-    BuildConfiguration *bc = target()->activeBuildConfiguration();
-    if (!bc)
-        return Abi::hostAbi();
-    ToolChain *tc = ToolChainKitInformation::toolChain(target()->kit(), Constants::CXX_LANGUAGE_ID);
-    if (!tc)
-        return Abi::hostAbi();
-    return tc->targetAbi();
-}
-
 BuildTargetInfo RunConfiguration::buildTargetInfo() const
 {
     return target()->applicationTargets().buildTargetInfo(m_buildKey);
@@ -1334,13 +1323,6 @@ Utils::Icon RunControl::icon() const
     return d->icon;
 }
 
-Abi RunControl::abi() const
-{
-    if (const RunConfiguration *rc = d->runConfiguration.data())
-        return rc->abi();
-    return Abi();
-}
-
 IDevice::ConstPtr RunControl::device() const
 {
    return d->device;
diff --git a/src/plugins/projectexplorer/runconfiguration.h b/src/plugins/projectexplorer/runconfiguration.h
index 9a973b42ebb..c31aeb9de0d 100644
--- a/src/plugins/projectexplorer/runconfiguration.h
+++ b/src/plugins/projectexplorer/runconfiguration.h
@@ -46,7 +46,6 @@
 namespace Utils { class OutputFormatter; }
 
 namespace ProjectExplorer {
-class Abi;
 class BuildConfiguration;
 class GlobalOrProjectAspect;
 class Node;
@@ -172,7 +171,6 @@ public:
     QVariantMap toMap() const override;
 
     virtual Runnable runnable() const;
-    virtual Abi abi() const;
 
     // Return a handle to the build system target that created this run configuration.
     // May return an empty string if no target built the executable!
@@ -439,7 +437,6 @@ public:
 
     Utils::ProcessHandle applicationProcessHandle() const;
     void setApplicationProcessHandle(const Utils::ProcessHandle &handle);
-    Abi abi() const;
     IDevice::ConstPtr device() const;
 
     RunConfiguration *runConfiguration() const;
diff --git a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
index 55e32ec508e..9ba68b556a1 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
+++ b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
@@ -374,13 +374,6 @@ QString QmlProjectRunConfiguration::commandLineArguments() const
     return args;
 }
 
-Abi QmlProjectRunConfiguration::abi() const
-{
-    Abi hostAbi = Abi::hostAbi();
-    return Abi(hostAbi.architecture(), hostAbi.os(), hostAbi.osFlavor(),
-               Abi::RuntimeQmlFormat, hostAbi.wordWidth());
-}
-
 void QmlProjectRunConfiguration::updateEnabledState()
 {
     bool qmlFileFound = m_mainQmlFileAspect->isQmlFilePresent();
diff --git a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
index b67e4238f0c..adfd3103a78 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
@@ -44,7 +44,6 @@ public:
 private:
     ProjectExplorer::Runnable runnable() const final;
     QString disabledReason() const final;
-    ProjectExplorer::Abi abi() const final;
     void updateEnabledState() final;
 
     QString mainScript() const;