Don't use `return std::move()` where it is not needed.

src/Magnum/Buffer.h

@@ -1326,7 +1326,7 @@ template<class T> Containers::Array<T> inline Buffer::data() {
 template<class T> Containers::Array<T> inline Buffer::subData(const GLintptr offset, const GLsizeiptr size) {
     Containers::Array<T> data(size);
     if(size) subDataInternal(offset, size*sizeof(T), data);
-    return std::move(data);
+    return data;
 }
 #endif
 

src/Magnum/Context.cpp

@@ -513,7 +513,7 @@ std::vector<std::string> Context::shadingLanguageVersionStrings() const {
     versions.reserve(versionCount);
     for(GLint i = 0; i != versionCount; ++i)
         versions.push_back(reinterpret_cast<const char*>(glGetStringi(GL_SHADING_LANGUAGE_VERSION, i)));
-    return std::move(versions);
+    return versions;
     #else
     return {shadingLanguageVersionString()};
     #endif

src/Magnum/Text/AbstractFontConverter.cpp

@@ -54,7 +54,7 @@ std::vector<char32_t> uniqueUnicode(const std::string& characters)
     std::sort(result.begin(), result.end());
     result.erase(std::unique(result.begin(), result.end()), result.end());
 
-    return std::move(result);
+    return result;
 }
 
 }
@@ -81,7 +81,7 @@ std::vector<std::pair<std::string, Containers::Array<char>>> AbstractFontConvert
 
     std::vector<std::pair<std::string, Containers::Array<char>>> out;
     out.emplace_back(filename, std::move(doExportFontToSingleData(font, cache, characters)));
-    return std::move(out);
+    return out;
 }
 
 Containers::Array<char> AbstractFontConverter::exportFontToSingleData(AbstractFont& font, GlyphCache& cache, const std::string& characters) const {
@@ -142,7 +142,7 @@ std::vector<std::pair<std::string, Containers::Array<char>>> AbstractFontConvert
 
     std::vector<std::pair<std::string, Containers::Array<char>>> out;
     out.emplace_back(filename, std::move(doExportGlyphCacheToSingleData(cache)));
-    return std::move(out);
+    return out;
 }
 
 Containers::Array<char> AbstractFontConverter::exportGlyphCacheToSingleData(GlyphCache& cache) const {

src/Magnum/Text/Renderer.cpp

@@ -254,7 +254,7 @@ template<UnsignedInt dimensions> std::tuple<Mesh, Range2D> Renderer<dimensions>:
             typename Shaders::AbstractVector<dimensions>::Position(
                 Shaders::AbstractVector<dimensions>::Position::Components::Two),
             typename Shaders::AbstractVector<dimensions>::TextureCoordinates());
-    return std::move(r);
+    return r;
 }
 
 #if defined(MAGNUM_TARGET_GLES2) && !defined(CORRADE_TARGET_EMSCRIPTEN)

src/Magnum/Text/Test/AbstractFontConverterTest.cpp

@@ -128,7 +128,7 @@ void AbstractFontConverterTest::exportFontToSingleData() {
             {
                 Containers::Array<char> data(1);
                 data[0] = '\xee';
-                return std::move(data);
+                return data;
             }
     };
 

src/MagnumPlugins/MagnumFontConverter/MagnumFontConverter.cpp

@@ -111,7 +111,7 @@ std::vector<std::pair<std::string, Containers::Array<char>>> MagnumFontConverter
     std::vector<std::pair<std::string, Containers::Array<char>>> out;
     out.emplace_back(filename + ".conf", std::move(confData));
     out.emplace_back(filename + ".tga", std::move(tgaData));
-    return std::move(out);
+    return out;
 }
 
 }}

src/MagnumPlugins/TgaImageConverter/TgaImageConverter.cpp

@@ -94,7 +94,7 @@ Containers::Array<char> TgaImageConverter::doExportToData(const ImageReference2D
     }
     #endif
 
-    return std::move(data);
+    return data;
 }
 
 }}